1974156792 has 96 divisors (see below), whose sum is σ = 5265129600. Its totient is φ = 615668416.

The previous prime is 1974156761. The next prime is 1974156799. The reversal of 1974156792 is 2976514791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974156799) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1218559 + ... + 1220177.

It is an arithmetic number, because the mean of its divisors is an integer number (54845100).

Almost surely, 2^1974156792 is an apocalyptic number.

1974156792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974156792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2632564800).

1974156792 is an abundant number, since it is smaller than the sum of its proper divisors (3290972808).

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

1974156792 is a wasteful number, since it uses less digits than its factorization.

1974156792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1694 counting only the distinct ones).

The product of its digits is 952560, while the sum is 51.

The square root of 1974156792 is about 44431.4842425954. The cubic root of 1974156792 is about 1254.4707729808.

It can be divided in two parts, 1974 and 156792, that added together give a triangular number (158766 = T₅₆₃).

The spelling of 1974156792 in words is "one billion, nine hundred seventy-four million, one hundred fifty-six thousand, seven hundred ninety-two".