40621870 has 32 divisors (see below), whose sum is σ = 74520000. Its totient is φ = 15941376.

The previous prime is 40621859. The next prime is 40621871. The reversal of 40621870 is 7812604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40621871) 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, 204031 + ... + 204229.

It is an arithmetic number, because the mean of its divisors is an integer number (2328750).

Almost surely, 2^40621870 is an apocalyptic number.

40621870 is a deficient number, since it is larger than the sum of its proper divisors (33898130).

40621870 is a wasteful number, since it uses less digits than its factorization.

40621870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 40621870 is about 6373.5288498602. The cubic root of 40621870 is about 343.7583878945.

The spelling of 40621870 in words is "forty million, six hundred twenty-one thousand, eight hundred seventy".