42340590 has 32 divisors (see below), whose sum is σ = 112908960. Its totient is φ = 11290752.

The previous prime is 42340559. The next prime is 42340621. The reversal of 42340590 is 9504324.

42340590 is a `hidden beast` number, since 42 + 34 + 0 + 590 = 666.

It is an interprime number because it is at equal distance from previous prime (42340559) and next prime (42340621).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78139 + ... + 78678.

It is an arithmetic number, because the mean of its divisors is an integer number (3528405).

Almost surely, 2^42340590 is an apocalyptic number.

42340590 is an abundant number, since it is smaller than the sum of its proper divisors (70568370).

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

42340590 is a wasteful number, since it uses less digits than its factorization.

42340590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156833 (or 156827 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42340590 is about 6506.9647301949. The cubic root of 42340590 is about 348.5397391400.

The spelling of 42340590 in words is "forty-two million, three hundred forty thousand, five hundred ninety".