80474240 has 256 divisors, whose sum is σ = 253808640. Its totient is φ = 23654400.

The previous prime is 80474231. The next prime is 80474269. The reversal of 80474240 is 4247408.

It is a super-2 number, since 2×80474240² = 12952206607155200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1133405 + ... + 1133475.

It is an arithmetic number, because the mean of its divisors is an integer number (991440).

Almost surely, 2^80474240 is an apocalyptic number.

80474240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80474240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126904320).

80474240 is an abundant number, since it is smaller than the sum of its proper divisors (173334400).

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

80474240 is a wasteful number, since it uses less digits than its factorization.

80474240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 80474240 is about 8970.7435589253. The cubic root of 80474240 is about 431.7366936841.

The spelling of 80474240 in words is "eighty million, four hundred seventy-four thousand, two hundred forty".