1945013970 has 32 divisors (see below), whose sum is σ = 4727128320. Its totient is φ = 512104320.

The previous prime is 1945013957. The next prime is 1945013999. The reversal of 1945013970 is 793105491.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407971 + ... + 412710.

It is an arithmetic number, because the mean of its divisors is an integer number (147722760).

Almost surely, 2^1945013970 is an apocalyptic number.

1945013970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1945013970 is an abundant number, since it is smaller than the sum of its proper divisors (2782114350).

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

1945013970 is a wasteful number, since it uses less digits than its factorization.

1945013970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820770.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 1945013970 is about 44102.3125244017. The cubic root of 1945013970 is about 1248.2672460943.

The spelling of 1945013970 in words is "one billion, nine hundred forty-five million, thirteen thousand, nine hundred seventy".