378722994 has 32 divisors (see below), whose sum is σ = 827897280. Its totient is φ = 114789312.

The previous prime is 378722983. The next prime is 378722999. The reversal of 378722994 is 499227873.

It is a super-2 number, since 2×378722994² = 286862212368648072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378722999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31009 + ... + 41460.

It is an arithmetic number, because the mean of its divisors is an integer number (25871790).

Almost surely, 2^378722994 is an apocalyptic number.

378722994 is an abundant number, since it is smaller than the sum of its proper divisors (449174286).

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

378722994 is a wasteful number, since it uses less digits than its factorization.

378722994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72554.

The product of its digits is 1524096, while the sum is 51.

The square root of 378722994 is about 19460.8066122656. The cubic root of 378722994 is about 723.5033693620.

The spelling of 378722994 in words is "three hundred seventy-eight million, seven hundred twenty-two thousand, nine hundred ninety-four".