820374070 has 16 divisors (see below), whose sum is σ = 1477185840. Its totient is φ = 328035744.

The previous prime is 820374067. The next prime is 820374179. The reversal of 820374070 is 70473028.

It is a super-2 number, since 2×820374070² = 1346027229456729800, which contains 22 as substring.

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, 19921 + ... + 45139.

It is an arithmetic number, because the mean of its divisors is an integer number (92324115).

Almost surely, 2^820374070 is an apocalyptic number.

820374070 is a deficient number, since it is larger than the sum of its proper divisors (656811770).

820374070 is a wasteful number, since it uses less digits than its factorization.

820374070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28479.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 820374070 is about 28642.1729273461. The cubic root of 820374070 is about 936.1324682544.

The spelling of 820374070 in words is "eight hundred twenty million, three hundred seventy-four thousand, seventy".