22320401240 has 32 divisors (see below), whose sum is σ = 52864110000. Its totient is φ = 8458257024.

The previous prime is 22320401227. The next prime is 22320401263. The reversal of 22320401240 is 4210402322.

It is a super-3 number, since 3×22320401240³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14683715 + ... + 14685234.

Almost surely, 2^22320401240 is an apocalyptic number.

22320401240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22320401240 is an abundant number, since it is smaller than the sum of its proper divisors (30543708760).

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

22320401240 is a wasteful number, since it uses less digits than its factorization.

22320401240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29368979 (or 29368975 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22320401240 its reverse (4210402322), we get a palindrome (26530803562).

The spelling of 22320401240 in words is "twenty-two billion, three hundred twenty million, four hundred one thousand, two hundred forty".