1355472 has 30 divisors (see below), whose sum is σ = 3793842. Its totient is φ = 451776.

The previous prime is 1355449. The next prime is 1355483. The reversal of 1355472 is 2745531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1354896 + 576 = 1164^2 + 24^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4563 + ... + 4850.

2^1355472 is an apocalyptic number.

1355472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1355472 is an abundant number, since it is smaller than the sum of its proper divisors (2438370).

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

1355472 is a wasteful number, since it uses less digits than its factorization.

1355472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427 (or 9418 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 1355472 is about 1164.2473963896. The cubic root of 1355472 is about 110.6700697329.

It can be divided in two parts, 135 and 5472, that multiplied together give a triangular number (738720 = T₁₂₁₅).

The spelling of 1355472 in words is "one million, three hundred fifty-five thousand, four hundred seventy-two".