1970243904 has 56 divisors (see below), whose sum is σ = 5227328128. Its totient is φ = 654935040.

The previous prime is 1970243903. The next prime is 1970243909. The reversal of 1970243904 is 4093420791.

It is a super-2 number, since 2×1970243904² = 7763722082498322432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970243903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56484 + ... + 84444.

Almost surely, 2^1970243904 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 1970243904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2613664064).

1970243904 is an abundant number, since it is smaller than the sum of its proper divisors (3257084224).

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

1970243904 is a wasteful number, since it uses less digits than its factorization.

1970243904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28343 (or 28333 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1970243904 is about 44387.4295718957. The cubic root of 1970243904 is about 1253.6414146322.

The spelling of 1970243904 in words is "one billion, nine hundred seventy million, two hundred forty-three thousand, nine hundred four".