1365650988 has 48 divisors (see below), whose sum is σ = 3504668160. Its totient is φ = 411257664.

The previous prime is 1365650983. The next prime is 1365650989. The reversal of 1365650988 is 8890565631.

It is a super-2 number, since 2×1365650988² = 3730005242050752288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1365650988.

It is not an unprimeable number, because it can be changed into a prime (1365650983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85798 + ... + 100461.

It is an arithmetic number, because the mean of its divisors is an integer number (73013920).

Almost surely, 2^1365650988 is an apocalyptic number.

It is an amenable number.

1365650988 is an abundant number, since it is smaller than the sum of its proper divisors (2139017172).

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

1365650988 is a wasteful number, since it uses less digits than its factorization.

1365650988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186326 (or 186324 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 1365650988 is about 36954.7153689485. The cubic root of 1365650988 is about 1109.4640672289.

The spelling of 1365650988 in words is "one billion, three hundred sixty-five million, six hundred fifty thousand, nine hundred eighty-eight".