379720978 has 32 divisors (see below), whose sum is σ = 703777536. Its totient is φ = 149629248.

The previous prime is 379720937. The next prime is 379721009. The reversal of 379720978 is 879027973.

It is a happy number.

It is a super-2 number, since 2×379720978² = 288376042266552968, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43900 + ... + 51832.

It is an arithmetic number, because the mean of its divisors is an integer number (21993048).

Almost surely, 2^379720978 is an apocalyptic number.

379720978 is a deficient number, since it is larger than the sum of its proper divisors (324056558).

379720978 is a wasteful number, since it uses less digits than its factorization.

379720978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8218.

The product of its (nonzero) digits is 1333584, while the sum is 52.

The square root of 379720978 is about 19486.4306120952. The cubic root of 379720978 is about 724.1383202344.

The spelling of 379720978 in words is "three hundred seventy-nine million, seven hundred twenty thousand, nine hundred seventy-eight".