70401744 has 160 divisors (see below), whose sum is σ = 238714880. Its totient is φ = 19440000.

The previous prime is 70401739. The next prime is 70401761. The reversal of 70401744 is 44710407.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93369 + ... + 94119.

It is an arithmetic number, because the mean of its divisors is an integer number (1491968).

Almost surely, 2^70401744 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 70401744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119357440).

70401744 is an abundant number, since it is smaller than the sum of its proper divisors (168313136).

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

70401744 is a wasteful number, since it uses less digits than its factorization.

70401744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 70401744 is about 8390.5747121398. The cubic root of 70401744 is about 412.9154558069.

The spelling of 70401744 in words is "seventy million, four hundred one thousand, seven hundred forty-four".