85214280 has 32 divisors (see below), whose sum is σ = 255643200. Its totient is φ = 22723776.

The previous prime is 85214279. The next prime is 85214291. The reversal of 85214280 is 8241258.

It is a super-2 number, since 2×85214280² = 14522947031836800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 354940 + ... + 355179.

It is an arithmetic number, because the mean of its divisors is an integer number (7988850).

Almost surely, 2^85214280 is an apocalyptic number.

It is an amenable number.

85214280 is an abundant number, since it is smaller than the sum of its proper divisors (170428920).

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

85214280 is a wasteful number, since it uses less digits than its factorization.

85214280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710133 (or 710129 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 85214280 is about 9231.1581071933. The cubic root of 85214280 is about 440.0521288100.

The spelling of 85214280 in words is "eighty-five million, two hundred fourteen thousand, two hundred eighty".