40621672 has 32 divisors (see below), whose sum is σ = 93744000. Its totient is φ = 16069824.

The previous prime is 40621667. The next prime is 40621673. The reversal of 40621672 is 27612604.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 40621672.

It is not an unprimeable number, because it can be changed into a prime (40621673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27172 + ... + 28627.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 2^40621672 is an apocalyptic number.

It is an amenable number.

40621672 is an abundant number, since it is smaller than the sum of its proper divisors (53122328).

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

40621672 is a wasteful number, since it uses less digits than its factorization.

40621672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55825 (or 55821 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40621672 is about 6373.5133168450. The cubic root of 40621672 is about 343.7578293754.

The spelling of 40621672 in words is "forty million, six hundred twenty-one thousand, six hundred seventy-two".