42105292 has 12 divisors (see below), whose sum is σ = 77562520. Its totient is φ = 19944576.

The previous prime is 42105263. The next prime is 42105313. The reversal of 42105292 is 29250124.

It is a super-2 number, since 2×42105292² = 3545711228810528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276933 + ... + 277084.

Almost surely, 2^42105292 is an apocalyptic number.

It is an amenable number.

42105292 is a deficient number, since it is larger than the sum of its proper divisors (35457228).

42105292 is a wasteful number, since it uses less digits than its factorization.

42105292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554040 (or 554038 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 42105292 is about 6488.8590676636. The cubic root of 42105292 is about 347.8928965334.

The spelling of 42105292 in words is "forty-two million, one hundred five thousand, two hundred ninety-two".