1972847040 has 112 divisors (see below), whose sum is σ = 6275283360. Its totient is φ = 525127680.

The previous prime is 1972847033. The next prime is 1972847047. The reversal of 1972847040 is 407482791.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1972847033) and next prime (1972847047).

It is a junction number, because it is equal to n+sod(n) for n = 1972846983 and 1972847001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972847047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633006 + ... + 636114.

Almost surely, 2^1972847040 is an apocalyptic number.

1972847040 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 1972847040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3137641680).

1972847040 is an abundant number, since it is smaller than the sum of its proper divisors (4302436320).

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

1972847040 is a wasteful number, since it uses less digits than its factorization.

1972847040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790 (or 3780 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1972847040 is about 44416.7427891780. The cubic root of 1972847040 is about 1254.1932858864.

The spelling of 1972847040 in words is "one billion, nine hundred seventy-two million, eight hundred forty-seven thousand, forty".