216025404 has 24 divisors (see below), whose sum is σ = 576067968. Its totient is φ = 61721520.

The previous prime is 216025399. The next prime is 216025417. The reversal of 216025404 is 404520612.

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, 1285782 + ... + 1285949.

It is an arithmetic number, because the mean of its divisors is an integer number (24002832).

Almost surely, 2^216025404 is an apocalyptic number.

It is an amenable number.

216025404 is an abundant number, since it is smaller than the sum of its proper divisors (360042564).

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

216025404 is a wasteful number, since it uses less digits than its factorization.

216025404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571745 (or 2571743 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 216025404 is about 14697.8026929198. The cubic root of 216025404 is about 600.0235213001.

The spelling of 216025404 in words is "two hundred sixteen million, twenty-five thousand, four hundred four".