426403390 has 24 divisors (see below), whose sum is σ = 892837512. Its totient is φ = 146195280.

The previous prime is 426403387. The next prime is 426403399. The reversal of 426403390 is 93304624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426403399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434616 + ... + 435595.

It is an arithmetic number, because the mean of its divisors is an integer number (37201563).

Almost surely, 2^426403390 is an apocalyptic number.

426403390 is an abundant number, since it is smaller than the sum of its proper divisors (466434122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426403390 is a wasteful number, since it uses less digits than its factorization.

426403390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870232 (or 870225 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 426403390 is about 20649.5372829514. The cubic root of 426403390 is about 752.6739457265.

The spelling of 426403390 in words is "four hundred twenty-six million, four hundred three thousand, three hundred ninety".