42894690 has 32 divisors (see below), whose sum is σ = 103213440. Its totient is φ = 11409024.

The previous prime is 42894679. The next prime is 42894713. The reversal of 42894690 is 9649824.

It is a super-2 number, since 2×42894690² = 3679908860392200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 11542 + ... + 14798.

It is an arithmetic number, because the mean of its divisors is an integer number (3225420).

Almost surely, 2^42894690 is an apocalyptic number.

42894690 is an abundant number, since it is smaller than the sum of its proper divisors (60318750).

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

42894690 is a wasteful number, since it uses less digits than its factorization.

42894690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 42894690 is about 6549.4037896590. The cubic root of 42894690 is about 350.0535700316.

The spelling of 42894690 in words is "forty-two million, eight hundred ninety-four thousand, six hundred ninety".