1046426021 has 4 divisors (see below), whose sum is σ = 1059672000. Its totient is φ = 1033180044.

The previous prime is 1046425997. The next prime is 1046426023. The reversal of 1046426021 is 1206246401.

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 a de Polignac number, because none of the positive numbers 2^k-1046426021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1046426023) 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, 6622871 + ... + 6623028.

It is an arithmetic number, because the mean of its divisors is an integer number (264918000).

Almost surely, 2^1046426021 is an apocalyptic number.

It is an amenable number.

1046426021 is a deficient number, since it is larger than the sum of its proper divisors (13245979).

1046426021 is an equidigital number, since it uses as much as digits as its factorization.

1046426021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13245978.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1046426021 is about 32348.5087909783. The cubic root of 1046426021 is about 1015.2418461615.

The spelling of 1046426021 in words is "one billion, forty-six million, four hundred twenty-six thousand, twenty-one".