1392949100 has 72 divisors (see below), whose sum is σ = 3076084368. Its totient is φ = 547430400.

The previous prime is 1392949099. The next prime is 1392949139. The reversal of 1392949100 is 19492931.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1580660 + ... + 1581540.

It is an arithmetic number, because the mean of its divisors is an integer number (42723394).

Almost surely, 2^1392949100 is an apocalyptic number.

1392949100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1392949100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1538042184).

1392949100 is an abundant number, since it is smaller than the sum of its proper divisors (1683135268).

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

1392949100 is a wasteful number, since it uses less digits than its factorization.

1392949100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1392949100 is about 37322.2333201002. The cubic root of 1392949100 is about 1116.8077413904.

The spelling of 1392949100 in words is "one billion, three hundred ninety-two million, nine hundred forty-nine thousand, one hundred".