612774252 has 36 divisors (see below), whose sum is σ = 1584983400. Its totient is φ = 199507392.

The previous prime is 612774229. The next prime is 612774289. The reversal of 612774252 is 252477216.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196377 + ... + 199472.

Almost surely, 2^612774252 is an apocalyptic number.

It is an amenable number.

612774252 is an abundant number, since it is smaller than the sum of its proper divisors (972209148).

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

612774252 is a wasteful number, since it uses less digits than its factorization.

612774252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395902 (or 395897 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 612774252 is about 24754.2774485542. The cubic root of 612774252 is about 849.3763600827.

The spelling of 612774252 in words is "six hundred twelve million, seven hundred seventy-four thousand, two hundred fifty-two".