1395402980 has 12 divisors (see below), whose sum is σ = 2930346300. Its totient is φ = 558161184.

The previous prime is 1395402919. The next prime is 1395403001. The reversal of 1395402980 is 892045931.

It can be written as a sum of positive squares in 2 ways, for example, as 639482944 + 755920036 = 25288^2 + 27494^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34885055 + ... + 34885094.

It is an arithmetic number, because the mean of its divisors is an integer number (244195525).

Almost surely, 2^1395402980 is an apocalyptic number.

1395402980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1395402980 is an abundant number, since it is smaller than the sum of its proper divisors (1534943320).

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

1395402980 is a wasteful number, since it uses less digits than its factorization.

1395402980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69770158 (or 69770156 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1395402980 is about 37355.0930931781. The cubic root of 1395402980 is about 1117.4631624403.

The spelling of 1395402980 in words is "one billion, three hundred ninety-five million, four hundred two thousand, nine hundred eighty".