1395742624 has 24 divisors (see below), whose sum is σ = 2842624260. Its totient is φ = 673806336.

The previous prime is 1395742613. The next prime is 1395742627. The reversal of 1395742624 is 4262475931.

It can be written as a sum of positive squares in 2 ways, for example, as 1306099600 + 89643024 = 36140^2 + 9468^2 .

It is not an unprimeable number, because it can be changed into a prime (1395742627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751089 + ... + 752944.

Almost surely, 2^1395742624 is an apocalyptic number.

It is an amenable number.

1395742624 is an abundant number, since it is smaller than the sum of its proper divisors (1446881636).

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

1395742624 is a wasteful number, since it uses less digits than its factorization.

1395742624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504072 (or 1504064 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 1395742624 is about 37359.6389704183. The cubic root of 1395742624 is about 1117.5538193746.

The spelling of 1395742624 in words is "one billion, three hundred ninety-five million, seven hundred forty-two thousand, six hundred twenty-four".