1552990464 has 81 divisors (see below), whose sum is σ = 4483114909. Its totient is φ = 517032960.

The previous prime is 1552990457. The next prime is 1552990469. The reversal of 1552990464 is 4640992551.

The square root of 1552990464 is 39408.

It is a perfect power (a square), and thus also a powerful number.

1552990464 is a `hidden beast` number, since 1 + 552 + 9 + 90 + 4 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 424030464 + 1128960000 = 20592^2 + 33600^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552990469) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1891174 + ... + 1891994.

Almost surely, 2^1552990464 is an apocalyptic number.

1552990464 is the 39408-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552990464

1552990464 is an abundant number, since it is smaller than the sum of its proper divisors (2930124445).

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

1552990464 is an frugal number, since it uses more digits than its factorization.

1552990464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The cubic root of 1552990464 is about 1158.0383174342.

It can be divided in two parts, 1552 and 990464, that added together give a square (992016 = 996²).

The spelling of 1552990464 in words is "one billion, five hundred fifty-two million, nine hundred ninety thousand, four hundred sixty-four".