1974897120 has 192 divisors, whose sum is σ = 7275502080. Its totient is φ = 440875008.

The previous prime is 1974897109. The next prime is 1974897121. The reversal of 1974897120 is 217984791.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1974897120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974897121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137646 + ... + 151314.

It is an arithmetic number, because the mean of its divisors is an integer number (37893240).

Almost surely, 2^1974897120 is an apocalyptic number.

1974897120 is a gapful number since it is divisible by the number (10) 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 1974897120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3637751040).

1974897120 is an abundant number, since it is smaller than the sum of its proper divisors (5300604960).

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

1974897120 is a wasteful number, since it uses less digits than its factorization.

1974897120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13737 (or 13729 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 1974897120 is about 44439.8145810713. The cubic root of 1974897120 is about 1254.6275662969.

The spelling of 1974897120 in words is "one billion, nine hundred seventy-four million, eight hundred ninety-seven thousand, one hundred twenty".