1392849450 has 36 divisors (see below), whose sum is σ = 3742123398. Its totient is φ = 371426400.

The previous prime is 1392849443. The next prime is 1392849583. The reversal of 1392849450 is 549482931.

1392849450 is a `hidden beast` number, since 139 + 28 + 49 + 450 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1157564529 + 235284921 = 34023^2 + 15339^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1392849396 and 1392849405.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1547161 + ... + 1548060.

Almost surely, 2^1392849450 is an apocalyptic number.

1392849450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1392849450 is an abundant number, since it is smaller than the sum of its proper divisors (2349273948).

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

1392849450 is a wasteful number, since it uses less digits than its factorization.

1392849450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095239 (or 3095231 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1392849450 is about 37320.8983010859. The cubic root of 1392849450 is about 1116.7811090352.

The spelling of 1392849450 in words is "one billion, three hundred ninety-two million, eight hundred forty-nine thousand, four hundred fifty".