85372440 has 32 divisors (see below), whose sum is σ = 256117680. Its totient is φ = 22765952.

The previous prime is 85372429. The next prime is 85372457. The reversal of 85372440 is 4427358.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355599 + ... + 355838.

Almost surely, 2^85372440 is an apocalyptic number.

It is an amenable number.

85372440 is an abundant number, since it is smaller than the sum of its proper divisors (170745240).

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

85372440 is a wasteful number, since it uses less digits than its factorization.

85372440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711451 (or 711447 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 85372440 is about 9239.7207750018. The cubic root of 85372440 is about 440.3242100858.

Adding to 85372440 its reverse (4427358), we get a palindrome (89799798).

The spelling of 85372440 in words is "eighty-five million, three hundred seventy-two thousand, four hundred forty".