402251345043320 has 32 divisors (see below), whose sum is σ = 909804089329920. Its totient is φ = 160058126820480.

The previous prime is 402251345043293. The next prime is 402251345043341. The reversal of 402251345043320 is 23340543152204.

It is a super-2 number, since 2×402251345043320² (a number of 30 digits) contains 22 as substring.

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, 26325342167 + ... + 26325357446.

It is an arithmetic number, because the mean of its divisors is an integer number (28431377791560).

Almost surely, 2^{402251345043320} is an apocalyptic number.

402251345043320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402251345043320 is an abundant number, since it is smaller than the sum of its proper divisors (507552744286600).

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

402251345043320 is a wasteful number, since it uses less digits than its factorization.

402251345043320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52650699815 (or 52650699811 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 402251345043320 its reverse (23340543152204), we get a palindrome (425591888195524).

The spelling of 402251345043320 in words is "four hundred two trillion, two hundred fifty-one billion, three hundred forty-five million, forty-three thousand, three hundred twenty".