1356431246 has 8 divisors (see below), whose sum is σ = 2049498720. Its totient is φ = 673265008.

The previous prime is 1356431221. The next prime is 1356431269. The reversal of 1356431246 is 6421346531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1356431246² = 3679811450250225032, 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 3 ways as a sum of consecutive naturals, for example, 2474966 + ... + 2475513.

It is an arithmetic number, because the mean of its divisors is an integer number (256187340).

Almost surely, 2^1356431246 is an apocalyptic number.

1356431246 is a deficient number, since it is larger than the sum of its proper divisors (693067474).

1356431246 is a wasteful number, since it uses less digits than its factorization.

1356431246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950618.

The product of its digits is 51840, while the sum is 35.

The square root of 1356431246 is about 36829.7603304719. The cubic root of 1356431246 is about 1106.9617006035.

Adding to 1356431246 its reverse (6421346531), we get a palindrome (7777777777).

The spelling of 1356431246 in words is "one billion, three hundred fifty-six million, four hundred thirty-one thousand, two hundred forty-six".