309269052 has 36 divisors (see below), whose sum is σ = 793437736. Its totient is φ = 101550240.

The previous prime is 309269011. The next prime is 309269087. The reversal of 309269052 is 250962903.

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 a junction number, because it is equal to n+sod(n) for n = 309268998 and 309269016.

It is a congruent number.

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, 61699 + ... + 66522.

Almost surely, 2^309269052 is an apocalyptic number.

It is an amenable number.

309269052 is an abundant number, since it is smaller than the sum of its proper divisors (484168684).

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

309269052 is a wasteful number, since it uses less digits than its factorization.

309269052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128298 (or 128293 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 309269052 is about 17586.0470828438. The cubic root of 309269052 is about 676.2575929711.

It can be divided in two parts, 309 and 269052, that added together give a square (269361 = 519²).

The spelling of 309269052 in words is "three hundred nine million, two hundred sixty-nine thousand, fifty-two".