1552432320 has 84 divisors (see below), whose sum is σ = 5339730240. Its totient is φ = 413981184.

The previous prime is 1552432319. The next prime is 1552432331. The reversal of 1552432320 is 232342551.

It is a happy number.

It is a super-2 number, since 2×1552432320² = 4820092216361164800, which contains 22 as substring.

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, 266640 + ... + 272399.

Almost surely, 2^1552432320 is an apocalyptic number.

1552432320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1552432320 is an abundant number, since it is smaller than the sum of its proper divisors (3787297920).

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

1552432320 is a wasteful number, since it uses less digits than its factorization.

1552432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539062 (or 539049 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1552432320 is about 39400.9177558087. The cubic root of 1552432320 is about 1157.8995680123.

Adding to 1552432320 its reverse (232342551), we get a palindrome (1784774871).

The spelling of 1552432320 in words is "one billion, five hundred fifty-two million, four hundred thirty-two thousand, three hundred twenty".