40702690 has 32 divisors (see below), whose sum is σ = 86436864. Its totient is φ = 13504320.

The previous prime is 40702679. The next prime is 40702691. The reversal of 40702690 is 9620704.

It is a super-2 number, since 2×40702690² = 3313417946472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40702691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7209 + ... + 11548.

It is an arithmetic number, because the mean of its divisors is an integer number (2701152).

Almost surely, 2^40702690 is an apocalyptic number.

40702690 is an abundant number, since it is smaller than the sum of its proper divisors (45734174).

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

40702690 is a wasteful number, since it uses less digits than its factorization.

40702690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18802.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40702690 is about 6379.8659860533. The cubic root of 40702690 is about 343.9862138427.

The spelling of 40702690 in words is "forty million, seven hundred two thousand, six hundred ninety".