1395621132 has 24 divisors (see below), whose sum is σ = 3257352000. Its totient is φ = 465078096.

The previous prime is 1395621109. The next prime is 1395621151. The reversal of 1395621132 is 2311265931.

It is a super-2 number, since 2×1395621132² = 3895516688169922848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1395621093 and 1395621102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35619 + ... + 63717.

It is an arithmetic number, because the mean of its divisors is an integer number (135723000).

Almost surely, 2^1395621132 is an apocalyptic number.

1395621132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1395621132 is an abundant number, since it is smaller than the sum of its proper divisors (1861730868).

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

1395621132 is a wasteful number, since it uses less digits than its factorization.

1395621132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32245 (or 32243 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 1395621132 is about 37358.0129557234. The cubic root of 1395621132 is about 1117.5213927209.

The spelling of 1395621132 in words is "one billion, three hundred ninety-five million, six hundred twenty-one thousand, one hundred thirty-two".