2421923652 has 72 divisors (see below), whose sum is σ = 6520515456. Its totient is φ = 785477088.

The previous prime is 2421923641. The next prime is 2421923653. The reversal of 2421923652 is 2563291242.

It is a super-2 number, since 2×2421923652² = 11731428352234034208, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2421923653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2293 + ... + 69635.

Almost surely, 2^2421923652 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 2421923652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3260257728).

2421923652 is an abundant number, since it is smaller than the sum of its proper divisors (4098591804).

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

2421923652 is a wasteful number, since it uses less digits than its factorization.

2421923652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67399 (or 67385 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2421923652 is about 49213.0435149057. The cubic root of 2421923652 is about 1342.9303311314.

The spelling of 2421923652 in words is "two billion, four hundred twenty-one million, nine hundred twenty-three thousand, six hundred fifty-two".