70299438 has 32 divisors (see below), whose sum is σ = 155492352. Its totient is φ = 21009600.

The previous prime is 70299433. The next prime is 70299479. The reversal of 70299438 is 83499207.

It is a self number, because there is not a number n which added to its sum of digits gives 70299438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70299433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2478 + ... + 12113.

It is an arithmetic number, because the mean of its divisors is an integer number (4859136).

Almost surely, 2^70299438 is an apocalyptic number.

70299438 is an abundant number, since it is smaller than the sum of its proper divisors (85192914).

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

70299438 is a wasteful number, since it uses less digits than its factorization.

70299438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14680.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 70299438 is about 8384.4760122503. The cubic root of 70299438 is about 412.7153461446.

The spelling of 70299438 in words is "seventy million, two hundred ninety-nine thousand, four hundred thirty-eight".