2293521240 has 64 divisors (see below), whose sum is σ = 6926796000. Its totient is φ = 607496192.

The previous prime is 2293521239. The next prime is 2293521277. The reversal of 2293521240 is 421253922.

It is a super-2 number, since 2×2293521240² = 10520479356662275200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2293521198 and 2293521207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46257 + ... + 82016.

Almost surely, 2^2293521240 is an apocalyptic number.

2293521240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2293521240 is an abundant number, since it is smaller than the sum of its proper divisors (4633274760).

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

2293521240 is a wasteful number, since it uses less digits than its factorization.

2293521240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128436 (or 128432 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2293521240 is about 47890.7218571614. The cubic root of 2293521240 is about 1318.7655355117.

The spelling of 2293521240 in words is "two billion, two hundred ninety-three million, five hundred twenty-one thousand, two hundred forty".