70790720 has 336 divisors, whose sum is σ = 240962688. Its totient is φ = 19169280.

The previous prime is 70790719. The next prime is 70790747. The reversal of 70790720 is 2709707.

It is a super-2 number, since 2×70790720² = 10022652076236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4164152 + ... + 4164168.

Almost surely, 2^70790720 is an apocalyptic number.

70790720 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 70790720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120481344).

70790720 is an abundant number, since it is smaller than the sum of its proper divisors (170171968).

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

70790720 is a wasteful number, since it uses less digits than its factorization.

70790720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 6174, while the sum is 32.

The square root of 70790720 is about 8413.7221251952. The cubic root of 70790720 is about 413.6745246178.

The spelling of 70790720 in words is "seventy million, seven hundred ninety thousand, seven hundred twenty".