1352439945 has 48 divisors (see below), whose sum is σ = 2424794112. Its totient is φ = 696608640.

The previous prime is 1352439941. The next prime is 1352439961. The reversal of 1352439945 is 5499342531.

1352439945 is a `hidden beast` number, since 1 + 3 + 524 + 39 + 94 + 5 = 666.

It is not a de Polignac number, because 1352439945 - 2² = 1352439941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1352439945.

It is not an unprimeable number, because it can be changed into a prime (1352439941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1236819 + ... + 1237911.

It is an arithmetic number, because the mean of its divisors is an integer number (50516544).

Almost surely, 2^1352439945 is an apocalyptic number.

1352439945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1352439945 is a deficient number, since it is larger than the sum of its proper divisors (1072354167).

1352439945 is a wasteful number, since it uses less digits than its factorization.

1352439945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2019 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 1352439945 is about 36775.5345984256. The cubic root of 1352439945 is about 1105.8748884286.

The spelling of 1352439945 in words is "one billion, three hundred fifty-two million, four hundred thirty-nine thousand, nine hundred forty-five".