340216057640 has 32 divisors (see below), whose sum is σ = 765508423680. Its totient is φ = 136082459712.

The previous prime is 340216057639. The next prime is 340216057723. The reversal of 340216057640 is 46750612043.

It is a happy number.

It is a super-2 number, since 2×340216057640² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340216057594 and 340216057603.

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, 1544057 + ... + 1750583.

It is an arithmetic number, because the mean of its divisors is an integer number (23922138240).

Almost surely, 2^340216057640 is an apocalyptic number.

It is an amenable number.

340216057640 is an abundant number, since it is smaller than the sum of its proper divisors (425292366040).

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

340216057640 is a wasteful number, since it uses less digits than its factorization.

340216057640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247721 (or 247717 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

Adding to 340216057640 its reverse (46750612043), we get a palindrome (386966669683).

The spelling of 340216057640 in words is "three hundred forty billion, two hundred sixteen million, fifty-seven thousand, six hundred forty".