1041790021 has 4 divisors (see below), whose sum is σ = 1054341792. Its totient is φ = 1029238252.

The previous prime is 1041790003. The next prime is 1041790031. The reversal of 1041790021 is 1200971401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1041790021 - 2⁵ = 1041789989 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 (1041790031) 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, 6275761 + ... + 6275926.

It is an arithmetic number, because the mean of its divisors is an integer number (263585448).

Almost surely, 2^1041790021 is an apocalyptic number.

It is an amenable number.

1041790021 is a deficient number, since it is larger than the sum of its proper divisors (12551771).

1041790021 is an equidigital number, since it uses as much as digits as its factorization.

1041790021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12551770.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1041790021 is about 32276.7721589381. The cubic root of 1041790021 is about 1013.7403452014.

The spelling of 1041790021 in words is "one billion, forty-one million, seven hundred ninety thousand, twenty-one".