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401450868 = 2232713315967
BaseRepresentation
bin10111111011011…
…010011101110100
31000222101211001200
4113323122131310
51310232411433
6103500252500
712643163460
oct2773323564
91028354050
10401450868
11196676a85
12b2541130
136522bac0
143b4614a0
152539d613
hex17eda774

401450868 has 288 divisors, whose sum is σ = 1330667520. Its totient is φ = 99221760.

The previous prime is 401450771. The next prime is 401450873. The reversal of 401450868 is 868054104.

It is a super-2 number, since 2×4014508682 = 322325598835906848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5991771 + ... + 5991837.

Almost surely, 2401450868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401450868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665333760).

401450868 is an abundant number, since it is smaller than the sum of its proper divisors (929216652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401450868 is a wasteful number, since it uses less digits than its factorization.

401450868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 401450868 is about 20036.2388686100. The cubic root of 401450868 is about 737.6960653853.

The spelling of 401450868 in words is "four hundred one million, four hundred fifty thousand, eight hundred sixty-eight".