1552400544 has 24 divisors (see below), whose sum is σ = 4075051680. Its totient is φ = 517466816.

The previous prime is 1552400539. The next prime is 1552400557. The reversal of 1552400544 is 4450042551.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1552400544² = 4819894898022991872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8085324 + ... + 8085515.

It is an arithmetic number, because the mean of its divisors is an integer number (169793820).

Almost surely, 2^1552400544 is an apocalyptic number.

It is an amenable number.

1552400544 is an abundant number, since it is smaller than the sum of its proper divisors (2522651136).

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

1552400544 is a wasteful number, since it uses less digits than its factorization.

1552400544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170852 (or 16170844 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1552400544 is about 39400.5145144070. The cubic root of 1552400544 is about 1157.8916677929.

The spelling of 1552400544 in words is "one billion, five hundred fifty-two million, four hundred thousand, five hundred forty-four".