1365039564 has 48 divisors (see below), whose sum is σ = 3659206656. Its totient is φ = 387964800.

The previous prime is 1365039563. The next prime is 1365039583. The reversal of 1365039564 is 4659305631.

It is a super-2 number, since 2×1365039564² = 3726666022570620192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1365039563) 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, 26497 + ... + 58584.

It is an arithmetic number, because the mean of its divisors is an integer number (76233472).

Almost surely, 2^1365039564 is an apocalyptic number.

1365039564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1365039564 is an abundant number, since it is smaller than the sum of its proper divisors (2294167092).

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

1365039564 is a wasteful number, since it uses less digits than its factorization.

1365039564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85286 (or 85284 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 1365039564 is about 36946.4418313861. The cubic root of 1365039564 is about 1109.2984675197.

The spelling of 1365039564 in words is "one billion, three hundred sixty-five million, thirty-nine thousand, five hundred sixty-four".