1039421293 has 4 divisors (see below), whose sum is σ = 1100563740. Its totient is φ = 978278848.

The previous prime is 1039421233. The next prime is 1039421321. The reversal of 1039421293 is 3921249301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 929213289 + 110208004 = 30483^2 + 10498^2 .

It is a cyclic number.

It is not a de Polignac number, because 1039421293 - 2¹³ = 1039413101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039421233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30571198 + ... + 30571231.

It is an arithmetic number, because the mean of its divisors is an integer number (275140935).

Almost surely, 2^1039421293 is an apocalyptic number.

It is an amenable number.

1039421293 is a deficient number, since it is larger than the sum of its proper divisors (61142447).

1039421293 is an equidigital number, since it uses as much as digits as its factorization.

1039421293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61142446.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1039421293 is about 32240.0572735223. The cubic root of 1039421293 is about 1012.9714450940.

The spelling of 1039421293 in words is "one billion, thirty-nine million, four hundred twenty-one thousand, two hundred ninety-three".