87403242 has 16 divisors (see below), whose sum is σ = 177416352. Its totient is φ = 28699440.

The previous prime is 87403241. The next prime is 87403247. The reversal of 87403242 is 24230478.

It is a super-2 number, since 2×87403242² = 15278653424221128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87403241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108309 + ... + 109112.

It is an arithmetic number, because the mean of its divisors is an integer number (11088522).

Almost surely, 2^87403242 is an apocalyptic number.

87403242 is an abundant number, since it is smaller than the sum of its proper divisors (90013110).

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

87403242 is a wasteful number, since it uses less digits than its factorization.

87403242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217493.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 87403242 is about 9348.9701037066. The cubic root of 87403242 is about 443.7882989625.

The spelling of 87403242 in words is "eighty-seven million, four hundred three thousand, two hundred forty-two".