390193494 has 8 divisors (see below), whose sum is σ = 780387000. Its totient is φ = 130064496.

The previous prime is 390193487. The next prime is 390193499. The reversal of 390193494 is 494391093.

It is a sphenic number, since it is the product of 3 distinct primes.

390193494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390193499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32516119 + ... + 32516130.

It is an arithmetic number, because the mean of its divisors is an integer number (97548375).

Almost surely, 2^390193494 is an apocalyptic number.

390193494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

390193494 is a wasteful number, since it uses less digits than its factorization.

390193494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65032254.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 390193494 is about 19753.3160254171. The cubic root of 390193494 is about 730.7351660570.

The spelling of 390193494 in words is "three hundred ninety million, one hundred ninety-three thousand, four hundred ninety-four".