1908431363420 has 24 divisors (see below), whose sum is σ = 4007812389504. Its totient is φ = 763352254656.

The previous prime is 1908431363329. The next prime is 1908431363561. The reversal of 1908431363420 is 243631348091.

It is a super-2 number, since 2×1908431363420² (a number of 25 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, 485132 + ... + 2013011.

It is an arithmetic number, because the mean of its divisors is an integer number (166992182896).

Almost surely, 2^{1908431363420} is an apocalyptic number.

1908431363420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1908431363420 is an abundant number, since it is smaller than the sum of its proper divisors (2099381026084).

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

1908431363420 is a wasteful number, since it uses less digits than its factorization.

1908431363420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536349 (or 2536347 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 1908431363420 in words is "one trillion, nine hundred eight billion, four hundred thirty-one million, three hundred sixty-three thousand, four hundred twenty".