142620264 has 80 divisors (see below), whose sum is σ = 403764900. Its totient is φ = 47029248.

The previous prime is 142620253. The next prime is 142620271. The reversal of 142620264 is 462026241.

142620264 is a `hidden beast` number, since 14 + 2 + 620 + 26 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 129004164 + 13616100 = 11358^2 + 3690^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61722 + ... + 63990.

Almost surely, 2^142620264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142620264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201882450).

142620264 is an abundant number, since it is smaller than the sum of its proper divisors (261144636).

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

142620264 is a wasteful number, since it uses less digits than its factorization.

142620264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384 (or 2371 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 142620264 is about 11942.3726285860. The cubic root of 142620264 is about 522.4688613419.

It can be divided in two parts, 142620 and 264, that added together give a square (142884 = 378²).

The spelling of 142620264 in words is "one hundred forty-two million, six hundred twenty thousand, two hundred sixty-four".