87240010 has 32 divisors (see below), whose sum is σ = 184488192. Its totient is φ = 29282880.

The previous prime is 87239987. The next prime is 87240011. The reversal of 87240010 is 1004278.

It is a super-2 number, since 2×87240010² = 15221638689600200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (87240011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29074 + ... + 31933.

It is an arithmetic number, because the mean of its divisors is an integer number (5765256).

Almost surely, 2^87240010 is an apocalyptic number.

87240010 is an abundant number, since it is smaller than the sum of its proper divisors (97248182).

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

87240010 is a wasteful number, since it uses less digits than its factorization.

87240010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61038.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 87240010 is about 9340.2360783869. The cubic root of 87240010 is about 443.5118576743.

Adding to 87240010 its reverse (1004278), we get a palindrome (88244288).

The spelling of 87240010 in words is "eighty-seven million, two hundred forty thousand, ten".