42451292 has 24 divisors (see below), whose sum is σ = 80556000. Its totient is φ = 19457856.

The previous prime is 42451291. The next prime is 42451319. The reversal of 42451292 is 29215424.

It is a super-2 number, since 2×42451292² = 3604224384938528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42451291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5009 + ... + 10487.

It is an arithmetic number, because the mean of its divisors is an integer number (3356500).

Almost surely, 2^42451292 is an apocalyptic number.

It is an amenable number.

42451292 is a deficient number, since it is larger than the sum of its proper divisors (38104708).

42451292 is a wasteful number, since it uses less digits than its factorization.

42451292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5643 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 42451292 is about 6515.4656011677. The cubic root of 42451292 is about 348.8432341093.

The spelling of 42451292 in words is "forty-two million, four hundred fifty-one thousand, two hundred ninety-two".