70490772 has 144 divisors (see below), whose sum is σ = 212127552. Its totient is φ = 19491840.

The previous prime is 70490743. The next prime is 70490801. The reversal of 70490772 is 27709407.

It is an interprime number because it is at equal distance from previous prime (70490743) and next prime (70490801).

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

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, 248943 + ... + 249225.

It is an arithmetic number, because the mean of its divisors is an integer number (1473108).

Almost surely, 2^70490772 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 70490772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106063776).

70490772 is an abundant number, since it is smaller than the sum of its proper divisors (141636780).

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

70490772 is a wasteful number, since it uses less digits than its factorization.

70490772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 353 counting only the distinct ones).

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

The square root of 70490772 is about 8395.8782744868. The cubic root of 70490772 is about 413.0894361202.

The spelling of 70490772 in words is "seventy million, four hundred ninety thousand, seven hundred seventy-two".