70772940 has 180 divisors, whose sum is σ = 256986576. Its totient is φ = 15971904.

The previous prime is 70772939. The next prime is 70772953. The reversal of 70772940 is 4927707.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 70772895 and 70772904.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 895821 + ... + 895899.

Almost surely, 2^70772940 is an apocalyptic number.

70772940 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 70772940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128493288).

70772940 is an abundant number, since it is smaller than the sum of its proper divisors (186213636).

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

70772940 is a wasteful number, since it uses less digits than its factorization.

70772940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 70772940 is about 8412.6654515677. The cubic root of 70772940 is about 413.6398884917.

The spelling of 70772940 in words is "seventy million, seven hundred seventy-two thousand, nine hundred forty".