85402404 has 48 divisors (see below), whose sum is σ = 231047040. Its totient is φ = 27228960.

The previous prime is 85402399. The next prime is 85402409. The reversal of 85402404 is 40420458.

It is an interprime number because it is at equal distance from previous prime (85402399) and next prime (85402409).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (85402409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14707 + ... + 19674.

It is an arithmetic number, because the mean of its divisors is an integer number (4813480).

Almost surely, 2^85402404 is an apocalyptic number.

It is an amenable number.

85402404 is an abundant number, since it is smaller than the sum of its proper divisors (145644636).

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

85402404 is a wasteful number, since it uses less digits than its factorization.

85402404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34417 (or 34409 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 85402404 is about 9241.3421103214. The cubic root of 85402404 is about 440.3757190245.

The spelling of 85402404 in words is "eighty-five million, four hundred two thousand, four hundred four".