33870465 has 24 divisors (see below), whose sum is σ = 58886568. Its totient is φ = 18009600.

The previous prime is 33870461. The next prime is 33870481. The reversal of 33870465 is 56407833.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15000129 + 18870336 = 3873^2 + 4344^2 .

It is not a de Polignac number, because 33870465 - 2² = 33870461 is a prime.

It is a super-2 number, since 2×33870465² = 2294416798632450, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (33870461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17107 + ... + 18983.

It is an arithmetic number, because the mean of its divisors is an integer number (2453607).

Almost surely, 2^33870465 is an apocalyptic number.

It is an amenable number.

33870465 is a deficient number, since it is larger than the sum of its proper divisors (25016103).

33870465 is a wasteful number, since it uses less digits than its factorization.

33870465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 33870465 is about 5819.8337605124. The cubic root of 33870465 is about 323.5492417241.

The spelling of 33870465 in words is "thirty-three million, eight hundred seventy thousand, four hundred sixty-five".