1492239643 has 8 divisors (see below), whose sum is σ = 1510871040. Its totient is φ = 1473721320.

The previous prime is 1492239641. The next prime is 1492239659. The reversal of 1492239643 is 3469322941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1492239643 - 2¹ = 1492239641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1492239643.

It is not an unprimeable number, because it can be changed into a prime (1492239641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1555 + ... + 54652.

It is an arithmetic number, because the mean of its divisors is an integer number (188858880).

Almost surely, 2^1492239643 is an apocalyptic number.

1492239643 is a deficient number, since it is larger than the sum of its proper divisors (18631397).

1492239643 is a wasteful number, since it uses less digits than its factorization.

1492239643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56537.

The product of its digits is 279936, while the sum is 43.

The square root of 1492239643 is about 38629.5177681524. The cubic root of 1492239643 is about 1142.7367414447.

The spelling of 1492239643 in words is "one billion, four hundred ninety-two million, two hundred thirty-nine thousand, six hundred forty-three".