1997962524 has 144 divisors (see below), whose sum is σ = 5500092416. Its totient is φ = 633355200.

The previous prime is 1997962523. The next prime is 1997962531. The reversal of 1997962524 is 4252697991.

1997962524 is a `hidden beast` number, since 1 + 9 + 9 + 7 + 9 + 625 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997962523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1837509 + ... + 1838595.

Almost surely, 2^1997962524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1997962524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2750046208).

1997962524 is an abundant number, since it is smaller than the sum of its proper divisors (3502129892).

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

1997962524 is a wasteful number, since it uses less digits than its factorization.

1997962524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1184 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 1997962524 is about 44698.5740712162. The cubic root of 1997962524 is about 1259.4930613757.

The spelling of 1997962524 in words is "one billion, nine hundred ninety-seven million, nine hundred sixty-two thousand, five hundred twenty-four".