1363256040 has 64 divisors (see below), whose sum is σ = 4092197760. Its totient is φ = 363319040.

The previous prime is 1363256021. The next prime is 1363256051. The reversal of 1363256040 is 406523631.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1363255989 and 1363256007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384757 + ... + 388283.

It is an arithmetic number, because the mean of its divisors is an integer number (63940590).

Almost surely, 2^1363256040 is an apocalyptic number.

1363256040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1363256040 is an abundant number, since it is smaller than the sum of its proper divisors (2728941720).

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

1363256040 is a wasteful number, since it uses less digits than its factorization.

1363256040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762 (or 6758 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1363256040 is about 36922.2973283083. The cubic root of 1363256040 is about 1108.8151304341.

Adding to 1363256040 its reverse (406523631), we get a palindrome (1769779671).

It can be divided in two parts, 1363 and 256040, that added together give a triangular number (257403 = T₇₁₇).

The spelling of 1363256040 in words is "one billion, three hundred sixty-three million, two hundred fifty-six thousand, forty".