426040619 has 2 divisors, whose sum is σ = 426040620. Its totient is φ = 426040618.

The previous prime is 426040609. The next prime is 426040663. The reversal of 426040619 is 916040624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426040619 is a prime.

It is a super-2 number, since 2×426040619² = 363021218075806322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426040609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213020309 + 213020310.

It is an arithmetic number, because the mean of its divisors is an integer number (213020310).

Almost surely, 2^426040619 is an apocalyptic number.

426040619 is a deficient number, since it is larger than the sum of its proper divisors (1).

426040619 is an equidigital number, since it uses as much as digits as its factorization.

426040619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 426040619 is about 20640.7514155856. The cubic root of 426040619 is about 752.4604344859.

The spelling of 426040619 in words is "four hundred twenty-six million, forty thousand, six hundred nineteen".