978000452 has 48 divisors (see below), whose sum is σ = 2116564800. Its totient is φ = 388748160.

The previous prime is 978000421. The next prime is 978000469. The reversal of 978000452 is 254000879.

It is a happy number.

It is a super-2 number, since 2×978000452² = 1912969768224408608, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 34127 + ... + 55862.

It is an arithmetic number, because the mean of its divisors is an integer number (44095100).

Almost surely, 2^978000452 is an apocalyptic number.

It is an amenable number.

978000452 is an abundant number, since it is smaller than the sum of its proper divisors (1138564348).

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

978000452 is a wasteful number, since it uses less digits than its factorization.

978000452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90036 (or 90034 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 978000452 is about 31272.9987689061. The cubic root of 978000452 is about 992.6123747243.

The spelling of 978000452 in words is "nine hundred seventy-eight million, four hundred fifty-two", and thus it is an aban number.