340021563245 has 32 divisors (see below), whose sum is σ = 513864460032. Its totient is φ = 210217254912.

The previous prime is 340021563173. The next prime is 340021563253. The reversal of 340021563245 is 542365120043.

It is not a de Polignac number, because 340021563245 - 2³² = 335726595949 is a prime.

It is a super-2 number, since 2×340021563245² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8669972 + ... + 8709101.

It is an arithmetic number, because the mean of its divisors is an integer number (16058264376).

Almost surely, 2^340021563245 is an apocalyptic number.

340021563245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340021563245 is a deficient number, since it is larger than the sum of its proper divisors (173842896787).

340021563245 is a wasteful number, since it uses less digits than its factorization.

340021563245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17379141.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 340021563245 its reverse (542365120043), we get a palindrome (882386683288).

The spelling of 340021563245 in words is "three hundred forty billion, twenty-one million, five hundred sixty-three thousand, two hundred forty-five".