1552978084 has 24 divisors (see below), whose sum is σ = 3288660480. Its totient is φ = 626411136.

The previous prime is 1552978079. The next prime is 1552978087. The reversal of 1552978084 is 4808792551.

It is a happy number.

It is a super-2 number, since 2×1552978084² = 4823481858768622112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1552978087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630804 + ... + 1631755.

It is an arithmetic number, because the mean of its divisors is an integer number (137027520).

Almost surely, 2^1552978084 is an apocalyptic number.

1552978084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1552978084 is an abundant number, since it is smaller than the sum of its proper divisors (1735682396).

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

1552978084 is a wasteful number, since it uses less digits than its factorization.

1552978084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262587 (or 3262585 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 49.

The square root of 1552978084 is about 39407.8429249813. The cubic root of 1552978084 is about 1158.0352402415.

The spelling of 1552978084 in words is "one billion, five hundred fifty-two million, nine hundred seventy-eight thousand, eighty-four".