371994642 has 12 divisors (see below), whose sum is σ = 805988430. Its totient is φ = 123998208.

The previous prime is 371994611. The next prime is 371994703. The reversal of 371994642 is 246499173.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 270569601 + 101425041 = 16449^2 + 10071^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10333167 + ... + 10333202.

Almost surely, 2^371994642 is an apocalyptic number.

371994642 is an abundant number, since it is smaller than the sum of its proper divisors (433993788).

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

371994642 is a wasteful number, since it uses less digits than its factorization.

371994642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20666377 (or 20666374 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 371994642 is about 19287.1626218062. The cubic root of 371994642 is about 719.1931818810.

The spelling of 371994642 in words is "three hundred seventy-one million, nine hundred ninety-four thousand, six hundred forty-two".