1900122736 has 20 divisors (see below), whose sum is σ = 3841553232. Its totient is φ = 908754176.

The previous prime is 1900122727. The next prime is 1900122761. The reversal of 1900122736 is 6372210091.

It is a super-2 number, since 2×1900122736² = 7220932823728251392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900122698 and 1900122707.

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, 2581321 + ... + 2582056.

Almost surely, 2^1900122736 is an apocalyptic number.

1900122736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1900122736 is an abundant number, since it is smaller than the sum of its proper divisors (1941430496).

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

1900122736 is a wasteful number, since it uses less digits than its factorization.

1900122736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163408 (or 5163402 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1900122736 is about 43590.3972911466. The cubic root of 1900122736 is about 1238.5889985623.

The spelling of 1900122736 in words is "one billion, nine hundred million, one hundred twenty-two thousand, seven hundred thirty-six".