87440450 has 24 divisors (see below), whose sum is σ = 165311220. Its totient is φ = 34401600.

The previous prime is 87440393. The next prime is 87440461. The reversal of 87440450 is 5404478.

It can be written as a sum of positive squares in 6 ways, for example, as 20675209 + 66765241 = 4547^2 + 8171^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11285 + ... + 17384.

Almost surely, 2^87440450 is an apocalyptic number.

87440450 is a deficient number, since it is larger than the sum of its proper divisors (77870770).

87440450 is a wasteful number, since it uses less digits than its factorization.

87440450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28742 (or 28737 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 87440450 is about 9350.9598437807. The cubic root of 87440450 is about 443.8512643326.

The spelling of 87440450 in words is "eighty-seven million, four hundred forty thousand, four hundred fifty".