40698390 has 32 divisors (see below), whose sum is σ = 98631936. Its totient is φ = 10746720.

The previous prime is 40698389. The next prime is 40698421. The reversal of 40698390 is 9389604.

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, 3496 + ... + 9675.

It is an arithmetic number, because the mean of its divisors is an integer number (3082248).

Almost surely, 2^40698390 is an apocalyptic number.

40698390 is an abundant number, since it is smaller than the sum of its proper divisors (57933546).

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

40698390 is a wasteful number, since it uses less digits than its factorization.

40698390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 40698390 is about 6379.5289794780. The cubic root of 40698390 is about 343.9741000421.

The spelling of 40698390 in words is "forty million, six hundred ninety-eight thousand, three hundred ninety".