40142902 has 16 divisors (see below), whose sum is σ = 63086400. Its totient is φ = 19131840.

The previous prime is 40142863. The next prime is 40142929. The reversal of 40142902 is 20924104.

It is a super-2 number, since 2×40142902² = 3222905161963208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 8962.

It is an arithmetic number, because the mean of its divisors is an integer number (3942900).

Almost surely, 2^40142902 is an apocalyptic number.

40142902 is a deficient number, since it is larger than the sum of its proper divisors (22943498).

40142902 is a wasteful number, since it uses less digits than its factorization.

40142902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8871.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40142902 is about 6335.8426432480. The cubic root of 40142902 is about 342.4019702754.

The spelling of 40142902 in words is "forty million, one hundred forty-two thousand, nine hundred two".