1356504 has 32 divisors (see below), whose sum is σ = 3510000. Its totient is φ = 436352.

The previous prime is 1356503. The next prime is 1356539. The reversal of 1356504 is 4056531.

1356504 = T₁₅₇ + T₁₅₈ + ... + T₂₂₈.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279 + ... + 1670.

2^1356504 is an apocalyptic number.

It is an amenable number.

1356504 is an abundant number, since it is smaller than the sum of its proper divisors (2153496).

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

1356504 is a wasteful number, since it uses less digits than its factorization.

1356504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1983 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1356504 is about 1164.6905168327. The cubic root of 1356504 is about 110.6981491372.

The spelling of 1356504 in words is "one million, three hundred fifty-six thousand, five hundred four".