618601404 has 48 divisors (see below), whose sum is σ = 1521709056. Its totient is φ = 195297600.

The previous prime is 618601393. The next prime is 618601421. The reversal of 618601404 is 404106816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207 + ... + 35174.

It is an arithmetic number, because the mean of its divisors is an integer number (31702272).

Almost surely, 2^618601404 is an apocalyptic number.

It is an amenable number.

618601404 is an abundant number, since it is smaller than the sum of its proper divisors (903107652).

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

618601404 is a wasteful number, since it uses less digits than its factorization.

618601404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35466 (or 35464 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 618601404 is about 24871.6988563307. The cubic root of 618601404 is about 852.0602406215.

The spelling of 618601404 in words is "six hundred eighteen million, six hundred one thousand, four hundred four".