1928972156 has 12 divisors (see below), whose sum is σ = 3376111368. Its totient is φ = 964368912.

The previous prime is 1928972147. The next prime is 1928972173. The reversal of 1928972156 is 6512798291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15290 + ... + 63966.

It is an arithmetic number, because the mean of its divisors is an integer number (281342614).

Almost surely, 2^1928972156 is an apocalyptic number.

It is an amenable number.

1928972156 is a deficient number, since it is larger than the sum of its proper divisors (1447139212).

1928972156 is a wasteful number, since it uses less digits than its factorization.

1928972156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58588 (or 58586 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 1928972156 is about 43920.0655281843. The cubic root of 1928972156 is about 1244.8260066629.

The spelling of 1928972156 in words is "one billion, nine hundred twenty-eight million, nine hundred seventy-two thousand, one hundred fifty-six".