578373940 has 24 divisors (see below), whose sum is σ = 1234499112. Its totient is φ = 227556480.

The previous prime is 578373919. The next prime is 578373953. The reversal of 578373940 is 49373875.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59536656 + 518837284 = 7716^2 + 22778^2 .

It is a super-2 number, since 2×578373940² = 669032828942247200, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 235819 + ... + 238258.

It is an arithmetic number, because the mean of its divisors is an integer number (51437463).

Almost surely, 2^578373940 is an apocalyptic number.

It is an amenable number.

578373940 is an abundant number, since it is smaller than the sum of its proper divisors (656125172).

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

578373940 is a wasteful number, since it uses less digits than its factorization.

578373940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474147 (or 474145 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 578373940 is about 24049.4062296764. The cubic root of 578373940 is about 833.1750166805.

The spelling of 578373940 in words is "five hundred seventy-eight million, three hundred seventy-three thousand, nine hundred forty".