340430637420 has 72 divisors (see below), whose sum is σ = 1032920637840. Its totient is φ = 90756796800.

The previous prime is 340430637383. The next prime is 340430637451. The reversal of 340430637420 is 24736034043.

340430637420 is a `hidden beast` number, since 340 + 4 + 306 + 3 + 7 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410671 + ... + 921689.

It is an arithmetic number, because the mean of its divisors is an integer number (14346119970).

Almost surely, 2^340430637420 is an apocalyptic number.

340430637420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340430637420 is an abundant number, since it is smaller than the sum of its proper divisors (692490000420).

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

340430637420 is a wasteful number, since it uses less digits than its factorization.

340430637420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514735 (or 514730 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 36.

The spelling of 340430637420 in words is "three hundred forty billion, four hundred thirty million, six hundred thirty-seven thousand, four hundred twenty".