1356431000 has 32 divisors (see below), whose sum is σ = 3174050880. Its totient is φ = 542572000.

The previous prime is 1356430987. The next prime is 1356431017. The reversal of 1356431000 is 1346531.

It is a happy number.

It is a super-2 number, since 2×1356431000² = 3679810115522000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677216 + ... + 679215.

It is an arithmetic number, because the mean of its divisors is an integer number (99189090).

Almost surely, 2^1356431000 is an apocalyptic number.

1356431000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1356431000 is an abundant number, since it is smaller than the sum of its proper divisors (1817619880).

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

1356431000 is a wasteful number, since it uses less digits than its factorization.

1356431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356452 (or 1356438 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1356431000 is about 36829.7569907812. The cubic root of 1356431000 is about 1106.9616336846.

Adding to 1356431000 its reverse (1346531), we get a palindrome (1357777531).

The spelling of 1356431000 in words is "one billion, three hundred fifty-six million, four hundred thirty-one thousand".