3972401552 has 20 divisors (see below), whose sum is σ = 8796032256. Its totient is φ = 1702457760.

The previous prime is 3972401539. The next prime is 3972401561. The reversal of 3972401552 is 2551042793.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17733824 + ... + 17734047.

Almost surely, 2^3972401552 is an apocalyptic number.

It is an amenable number.

3972401552 is an abundant number, since it is smaller than the sum of its proper divisors (4823630704).

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

3972401552 is a wasteful number, since it uses less digits than its factorization.

3972401552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35467886 (or 35467880 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 3972401552 is about 63026.9906627312. The cubic root of 3972401552 is about 1583.7418061121.

The spelling of 3972401552 in words is "three billion, nine hundred seventy-two million, four hundred one thousand, five hundred fifty-two".