1970475390 has 64 divisors (see below), whose sum is σ = 5658811200. Its totient is φ = 485039232.

The previous prime is 1970475373. The next prime is 1970475401. The reversal of 1970475390 is 935740791.

1970475390 is a `hidden beast` number, since 1 + 9 + 70 + 47 + 539 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

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, 277185 + ... + 284204.

It is an arithmetic number, because the mean of its divisors is an integer number (88418925).

Almost surely, 2^1970475390 is an apocalyptic number.

1970475390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1970475390 is an abundant number, since it is smaller than the sum of its proper divisors (3688335810).

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

1970475390 is a wasteful number, since it uses less digits than its factorization.

1970475390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561418 (or 561412 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 1970475390 is about 44390.0370578805. The cubic root of 1970475390 is about 1253.6905099195.

The spelling of 1970475390 in words is "one billion, nine hundred seventy million, four hundred seventy-five thousand, three hundred ninety".