70077440 has 44 divisors (see below), whose sum is σ = 168116016. Its totient is φ = 28028928.

The previous prime is 70077407. The next prime is 70077461. The reversal of 70077440 is 4477007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724 + ... + 11963.

Almost surely, 2^70077440 is an apocalyptic number.

It is an amenable number.

70077440 is an abundant number, since it is smaller than the sum of its proper divisors (98038576).

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

70077440 is a wasteful number, since it uses less digits than its factorization.

70077440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712 (or 13694 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 70077440 is about 8371.2269112717. The cubic root of 70077440 is about 412.2804512736.

The spelling of 70077440 in words is "seventy million, seventy-seven thousand, four hundred forty".