3734640072 has 48 divisors (see below), whose sum is σ = 10228315500. Its totient is φ = 1230890496.

The previous prime is 3734640067. The next prime is 3734640089. The reversal of 3734640072 is 2700464373.

It is a happy number.

3734640072 is a `hidden beast` number, since 3 + 7 + 3 + 4 + 640 + 0 + 7 + 2 = 666.

3734640072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3514829796 + 219810276 = 59286^2 + 14826^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284997 + ... + 297812.

Almost surely, 2^3734640072 is an apocalyptic number.

It is an amenable number.

3734640072 is an abundant number, since it is smaller than the sum of its proper divisors (6493675428).

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

3734640072 is a wasteful number, since it uses less digits than its factorization.

3734640072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582910 (or 582903 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The square root of 3734640072 is about 61111.7015963391. The cubic root of 3734640072 is about 1551.4921561309.

The spelling of 3734640072 in words is "three billion, seven hundred thirty-four million, six hundred forty thousand, seventy-two".