1492821369 has 24 divisors (see below), whose sum is σ = 2329118792. Its totient is φ = 915909120.

The previous prime is 1492821361. The next prime is 1492821397. The reversal of 1492821369 is 9631282941.

1492821369 is a `hidden beast` number, since 1 + 4 + 9 + 282 + 1 + 369 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 219188025 + 1273633344 = 14805^2 + 35688^2 .

It is not a de Polignac number, because 1492821369 - 2³ = 1492821361 is a prime.

It is a super-2 number, since 2×1492821369² = 4457031279486068322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1492821361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20499 + ... + 58359.

Almost surely, 2^1492821369 is an apocalyptic number.

It is an amenable number.

1492821369 is a deficient number, since it is larger than the sum of its proper divisors (836297423).

1492821369 is a wasteful number, since it uses less digits than its factorization.

1492821369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38217 (or 38214 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 1492821369 is about 38637.0465874399. The cubic root of 1492821369 is about 1142.8852147621.

The spelling of 1492821369 in words is "one billion, four hundred ninety-two million, eight hundred twenty-one thousand, three hundred sixty-nine".