70407288 has 48 divisors (see below), whose sum is σ = 217928880. Its totient is φ = 20116224.

The previous prime is 70407283. The next prime is 70407289. The reversal of 70407288 is 88270407.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70407283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69345 + ... + 70352.

It is an arithmetic number, because the mean of its divisors is an integer number (4540185).

Almost surely, 2^70407288 is an apocalyptic number.

It is an amenable number.

70407288 is an abundant number, since it is smaller than the sum of its proper divisors (147521592).

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

70407288 is a wasteful number, since it uses less digits than its factorization.

70407288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139716 (or 139709 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 70407288 is about 8390.9050763312. The cubic root of 70407288 is about 412.9262942846.

The spelling of 70407288 in words is "seventy million, four hundred seven thousand, two hundred eighty-eight".