42012454 has 32 divisors (see below), whose sum is σ = 71995392. Its totient is φ = 18216000.

The previous prime is 42012431. The next prime is 42012461. The reversal of 42012454 is 45421024.

42012454 = T₁₁₆ + T₁₁₇ + ... + T₆₃₂.

It is a happy number.

It is a super-2 number, since 2×42012454² = 3530092582204232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41899 + ... + 42889.

It is an arithmetic number, because the mean of its divisors is an integer number (2249856).

Almost surely, 2^42012454 is an apocalyptic number.

42012454 is a deficient number, since it is larger than the sum of its proper divisors (29982938).

42012454 is a wasteful number, since it uses less digits than its factorization.

42012454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42012454 is about 6481.7014741501. The cubic root of 42012454 is about 347.6370185820.

Adding to 42012454 its reverse (45421024), we get a palindrome (87433478).

The spelling of 42012454 in words is "forty-two million, twelve thousand, four hundred fifty-four".