70490770 has 32 divisors (see below), whose sum is σ = 145328256. Its totient is φ = 24115200.

The previous prime is 70490743. The next prime is 70490801. The reversal of 70490770 is 7709407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44085 + ... + 45655.

It is an arithmetic number, because the mean of its divisors is an integer number (4541508).

Almost surely, 2^70490770 is an apocalyptic number.

70490770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70490770 is an abundant number, since it is smaller than the sum of its proper divisors (74837486).

70490770 is a wasteful number, since it uses less digits than its factorization.

70490770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 70490770 is about 8395.8781553808. The cubic root of 70490770 is about 413.0894322134.

The spelling of 70490770 in words is "seventy million, four hundred ninety thousand, seven hundred seventy".