1355222472 has 16 divisors (see below), whose sum is σ = 3388056240. Its totient is φ = 451740816.

The previous prime is 1355222471. The next prime is 1355222501. The reversal of 1355222472 is 2742225531.

It is a super-2 number, since 2×1355222472² = 3673255897227581568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1355222471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28233778 + ... + 28233825.

It is an arithmetic number, because the mean of its divisors is an integer number (211753515).

Almost surely, 2^1355222472 is an apocalyptic number.

1355222472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1355222472 is an abundant number, since it is smaller than the sum of its proper divisors (2032833768).

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

1355222472 is a wasteful number, since it uses less digits than its factorization.

1355222472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56467612 (or 56467608 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 1355222472 is about 36813.3463841580. The cubic root of 1355222472 is about 1106.6327825467.

The spelling of 1355222472 in words is "one billion, three hundred fifty-five million, two hundred twenty-two thousand, four hundred seventy-two".