70454720 has 112 divisors (see below), whose sum is σ = 194876928. Its totient is φ = 23761920.

The previous prime is 70454701. The next prime is 70454731. The reversal of 70454720 is 2745407.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

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, 158819 + ... + 159261.

Almost surely, 2^70454720 is an apocalyptic number.

70454720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70454720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97438464).

70454720 is an abundant number, since it is smaller than the sum of its proper divisors (124422208).

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

70454720 is a wasteful number, since it uses less digits than its factorization.

70454720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 70454720 is about 8393.7309940217. The cubic root of 70454720 is about 413.0190002339.

The spelling of 70454720 in words is "seventy million, four hundred fifty-four thousand, seven hundred twenty".