40472660 has 48 divisors (see below), whose sum is σ = 90753600. Its totient is φ = 15116544.

The previous prime is 40472659. The next prime is 40472683. The reversal of 40472660 is 6627404.

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, 27011 + ... + 28469.

It is an arithmetic number, because the mean of its divisors is an integer number (1890700).

Almost surely, 2^40472660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40472660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45376800).

40472660 is an abundant number, since it is smaller than the sum of its proper divisors (50280940).

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

40472660 is a wasteful number, since it uses less digits than its factorization.

40472660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40472660 is about 6361.8126347763. The cubic root of 40472660 is about 343.3369800934.

The spelling of 40472660 in words is "forty million, four hundred seventy-two thousand, six hundred sixty".