427609590 has 16 divisors (see below), whose sum is σ = 1026263088. Its totient is φ = 114029216.

The previous prime is 427609571. The next prime is 427609591. The reversal of 427609590 is 95906724.

It is a super-2 number, since 2×427609590² = 365699922919936200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427609591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7126797 + ... + 7126856.

It is an arithmetic number, because the mean of its divisors is an integer number (64141443).

Almost surely, 2^427609590 is an apocalyptic number.

427609590 is an abundant number, since it is smaller than the sum of its proper divisors (598653498).

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

427609590 is a wasteful number, since it uses less digits than its factorization.

427609590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14253663.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 427609590 is about 20678.7231230557. The cubic root of 427609590 is about 753.3829930891.

The spelling of 427609590 in words is "four hundred twenty-seven million, six hundred nine thousand, five hundred ninety".