70437444 has 48 divisors (see below), whose sum is σ = 204911616. Its totient is φ = 18295200.

The previous prime is 70437439. The next prime is 70437461. The reversal of 70437444 is 44473407.

It is a super-2 number, since 2×70437444² = 9922867034506272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37192 + ... + 39039.

It is an arithmetic number, because the mean of its divisors is an integer number (4268992).

Almost surely, 2^70437444 is an apocalyptic number.

It is an amenable number.

70437444 is an abundant number, since it is smaller than the sum of its proper divisors (134474172).

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

70437444 is a wasteful number, since it uses less digits than its factorization.

70437444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76256 (or 76254 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 70437444 is about 8392.7018295660. The cubic root of 70437444 is about 412.9852390724.

The spelling of 70437444 in words is "seventy million, four hundred thirty-seven thousand, four hundred forty-four".