213894480 has 80 divisors (see below), whose sum is σ = 691920000. Its totient is φ = 54557184.

The previous prime is 213894463. The next prime is 213894491. The reversal of 213894480 is 84498312.

It is a tau number, because it is divible by the number of its divisors (80).

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, 13855 + ... + 24894.

It is an arithmetic number, because the mean of its divisors is an integer number (8649000).

Almost surely, 2^213894480 is an apocalyptic number.

213894480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213894480 is an abundant number, since it is smaller than the sum of its proper divisors (478025520).

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

213894480 is a wasteful number, since it uses less digits than its factorization.

213894480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38788 (or 38782 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 213894480 is about 14625.1317942780. The cubic root of 213894480 is about 598.0440753038.

The spelling of 213894480 in words is "two hundred thirteen million, eight hundred ninety-four thousand, four hundred eighty".