213976450 has 24 divisors (see below), whose sum is σ = 421409412. Its totient is φ = 80555520.

The previous prime is 213976447. The next prime is 213976459. The reversal of 213976450 is 54679312.

It can be written as a sum of positive squares in 6 ways, for example, as 68508729 + 145467721 = 8277^2 + 12061^2 .

It is a super-3 number, since 3×213976450³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (213976459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125019 + ... + 126718.

Almost surely, 2^213976450 is an apocalyptic number.

213976450 is a deficient number, since it is larger than the sum of its proper divisors (207432962).

213976450 is a wasteful number, since it uses less digits than its factorization.

213976450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251766 (or 251761 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 213976450 is about 14627.9338937527. The cubic root of 213976450 is about 598.1204609622.

The spelling of 213976450 in words is "two hundred thirteen million, nine hundred seventy-six thousand, four hundred fifty".