34400020312 has 16 divisors (see below), whose sum is σ = 73714329360. Its totient is φ = 14742865824.

The previous prime is 34400020309. The next prime is 34400020373. The reversal of 34400020312 is 21302000443.

It is a super-2 number, since 2×34400020312² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34400020312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307142983 + ... + 307143094.

It is an arithmetic number, because the mean of its divisors is an integer number (4607145585).

Almost surely, 2^34400020312 is an apocalyptic number.

It is an amenable number.

34400020312 is an abundant number, since it is smaller than the sum of its proper divisors (39314309048).

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

34400020312 is a wasteful number, since it uses less digits than its factorization.

34400020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614286090 (or 614286086 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 34400020312 its reverse (21302000443), we get a palindrome (55702020755).

The spelling of 34400020312 in words is "thirty-four billion, four hundred million, twenty thousand, three hundred twelve".