37640001420 has 144 divisors (see below), whose sum is σ = 130710198528. Its totient is φ = 8588603520.

The previous prime is 37640001353. The next prime is 37640001431. The reversal of 37640001420 is 2410004673.

37640001420 is a `hidden beast` number, since 3 + 7 + 640 + 0 + 0 + 14 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 714175 + ... + 765065.

It is an arithmetic number, because the mean of its divisors is an integer number (907709712).

Almost surely, 2^37640001420 is an apocalyptic number.

37640001420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 37640001420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65355099264).

37640001420 is an abundant number, since it is smaller than the sum of its proper divisors (93070197108).

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

37640001420 is a wasteful number, since it uses less digits than its factorization.

37640001420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51500 (or 51495 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The spelling of 37640001420 in words is "thirty-seven billion, six hundred forty million, one thousand, four hundred twenty".