1331995350 has 48 divisors (see below), whose sum is σ = 3775258368. Its totient is φ = 304455840.

The previous prime is 1331995349. The next prime is 1331995351. The reversal of 1331995350 is 535991331.

It is an interprime number because it is at equal distance from previous prime (1331995349) and next prime (1331995351).

It is a super-2 number, since 2×1331995350² = 3548423224843245000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331995299 and 1331995308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331995351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633234 + ... + 635333.

It is an arithmetic number, because the mean of its divisors is an integer number (78651216).

Almost surely, 2^1331995350 is an apocalyptic number.

1331995350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331995350 is an abundant number, since it is smaller than the sum of its proper divisors (2443263018).

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

1331995350 is a wasteful number, since it uses less digits than its factorization.

1331995350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268589 (or 1268584 counting only the distinct ones).

The product of its (nonzero) digits is 54675, while the sum is 39.

The square root of 1331995350 is about 36496.5114771261. The cubic root of 1331995350 is about 1100.2741327792.

The spelling of 1331995350 in words is "one billion, three hundred thirty-one million, nine hundred ninety-five thousand, three hundred fifty".