70751840 has 48 divisors (see below), whose sum is σ = 167968080. Its totient is φ = 28162560.

The previous prime is 70751809. The next prime is 70751861. The reversal of 70751840 is 4815707.

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

It is a junction number, because it is equal to n+sod(n) for n = 70751797 and 70751806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35675 + ... + 37605.

It is an arithmetic number, because the mean of its divisors is an integer number (3499335).

Almost surely, 2^70751840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70751840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83984040).

70751840 is an abundant number, since it is smaller than the sum of its proper divisors (97216240).

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

70751840 is a wasteful number, since it uses less digits than its factorization.

70751840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 70751840 is about 8411.4112965661. The cubic root of 70751840 is about 413.5987773497.

The spelling of 70751840 in words is "seventy million, seven hundred fifty-one thousand, eight hundred forty".