37218405040 has 40 divisors (see below), whose sum is σ = 86840790048. Its totient is φ = 14834373120.

The previous prime is 37218405023. The next prime is 37218405053. The reversal of 37218405040 is 4050481273.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 37218404987 and 37218405005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805332 + ... + 850291.

Almost surely, 2^37218405040 is an apocalyptic number.

It is an amenable number.

37218405040 is an abundant number, since it is smaller than the sum of its proper divisors (49622385008).

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

37218405040 is a wasteful number, since it uses less digits than its factorization.

37218405040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655917 (or 1655911 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 37218405040 in words is "thirty-seven billion, two hundred eighteen million, four hundred five thousand, forty".