426197406 has 16 divisors (see below), whose sum is σ = 889455744. Its totient is φ = 135888984.

The previous prime is 426197399. The next prime is 426197411. The reversal of 426197406 is 604791624.

It is a happy number.

It is a super-2 number, since 2×426197406² = 363288457762257672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544056 + ... + 1544331.

It is an arithmetic number, because the mean of its divisors is an integer number (55590984).

Almost surely, 2^426197406 is an apocalyptic number.

426197406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

426197406 is an abundant number, since it is smaller than the sum of its proper divisors (463258338).

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

426197406 is a wasteful number, since it uses less digits than its factorization.

426197406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088415.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 426197406 is about 20644.5490626461. The cubic root of 426197406 is about 752.5527273642.

The spelling of 426197406 in words is "four hundred twenty-six million, one hundred ninety-seven thousand, four hundred six".