1974140928 has 102 divisors (see below), whose sum is σ = 5704734204. Its totient is φ = 657850368.

The previous prime is 1974140911. The next prime is 1974140941. The reversal of 1974140928 is 8290414791.

It is a happy number.

It is a super-3 number, since 3×1974140928³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 588151 + ... + 591497.

Almost surely, 2^1974140928 is an apocalyptic number.

1974140928 is a gapful number since it is divisible by the number (18) 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 1974140928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2852367102).

1974140928 is an abundant number, since it is smaller than the sum of its proper divisors (3730593276).

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

1974140928 is an frugal number, since it uses more digits than its factorization.

1974140928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385 (or 3352 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1974140928 is about 44431.3057201789. The cubic root of 1974140928 is about 1254.4674127314.

It can be divided in two parts, 1974 and 140928, that multiplied together give a palindrome (278191872).

The spelling of 1974140928 in words is "one billion, nine hundred seventy-four million, one hundred forty thousand, nine hundred twenty-eight".