42732590 has 16 divisors (see below), whose sum is σ = 77639472. Its totient is φ = 16932864.

The previous prime is 42732589. The next prime is 42732617. The reversal of 42732590 is 9523724.

It is a happy number.

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, 18899 + ... + 21038.

It is an arithmetic number, because the mean of its divisors is an integer number (4852467).

Almost surely, 2^42732590 is an apocalyptic number.

42732590 is a deficient number, since it is larger than the sum of its proper divisors (34906882).

42732590 is a wasteful number, since it uses less digits than its factorization.

42732590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40051.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 42732590 is about 6537.0169037566. The cubic root of 42732590 is about 349.6120599620.

The spelling of 42732590 in words is "forty-two million, seven hundred thirty-two thousand, five hundred ninety".