1974111552 has 336 divisors, whose sum is σ = 6919935360. Its totient is φ = 525533184.

The previous prime is 1974111547. The next prime is 1974111611. The reversal of 1974111552 is 2551114791.

1974111552 is a `hidden beast` number, since 1 + 97 + 4 + 1 + 11 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5592208 + ... + 5592560.

Almost surely, 2^1974111552 is an apocalyptic number.

1974111552 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 1974111552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3459967680).

1974111552 is an abundant number, since it is smaller than the sum of its proper divisors (4945823808).

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

1974111552 is a wasteful number, since it uses less digits than its factorization.

1974111552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 457 counting only the distinct ones).

The product of its digits is 12600, while the sum is 36.

The square root of 1974111552 is about 44430.9751412233. The cubic root of 1974111552 is about 1254.4611903763.

It can be divided in two parts, 1974 and 111552, that added together give a triangular number (113526 = T₄₇₆).

The spelling of 1974111552 in words is "one billion, nine hundred seventy-four million, one hundred eleven thousand, five hundred fifty-two".