70306740 has 72 divisors (see below), whose sum is σ = 243734400. Its totient is φ = 16069824.

The previous prime is 70306721. The next prime is 70306757. The reversal of 70306740 is 4760307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26640 + ... + 29159.

It is an arithmetic number, because the mean of its divisors is an integer number (3385200).

Almost surely, 2^70306740 is an apocalyptic number.

70306740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70306740 is an abundant number, since it is smaller than the sum of its proper divisors (173427660).

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

70306740 is a wasteful number, since it uses less digits than its factorization.

70306740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55821 (or 55816 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 70306740 is about 8384.9114485485. The cubic root of 70306740 is about 412.7296352257.

The spelling of 70306740 in words is "seventy million, three hundred six thousand, seven hundred forty".