618604494 has 16 divisors (see below), whose sum is σ = 1237486032. Its totient is φ = 206155328.

The previous prime is 618604471. The next prime is 618604513. The reversal of 618604494 is 494406816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27802 + ... + 44834.

It is an arithmetic number, because the mean of its divisors is an integer number (77342877).

Almost surely, 2^618604494 is an apocalyptic number.

618604494 is an abundant number, since it is smaller than the sum of its proper divisors (618881538).

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

618604494 is a wasteful number, since it uses less digits than its factorization.

618604494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23091.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 618604494 is about 24871.7609750496. The cubic root of 618604494 is about 852.0616593389.

The spelling of 618604494 in words is "six hundred eighteen million, six hundred four thousand, four hundred ninety-four".