1395131420 has 24 divisors (see below), whose sum is σ = 3030804000. Its totient is φ = 538809152.

The previous prime is 1395131393. The next prime is 1395131429. The reversal of 1395131420 is 241315931.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395131429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202120 + ... + 1203279.

It is an arithmetic number, because the mean of its divisors is an integer number (126283500).

Almost surely, 2^1395131420 is an apocalyptic number.

1395131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1395131420 is an abundant number, since it is smaller than the sum of its proper divisors (1635672580).

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

1395131420 is a wasteful number, since it uses less digits than its factorization.

1395131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405437 (or 2405435 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1395131420 is about 37351.4580706028. The cubic root of 1395131420 is about 1117.3906677349.

The spelling of 1395131420 in words is "one billion, three hundred ninety-five million, one hundred thirty-one thousand, four hundred twenty".