42091654 has 16 divisors (see below), whose sum is σ = 69823440. Its totient is φ = 18869760.

The previous prime is 42091639. The next prime is 42091657. The reversal of 42091654 is 45619024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42091657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11499 + ... + 14710.

It is an arithmetic number, because the mean of its divisors is an integer number (4363965).

Almost surely, 2^42091654 is an apocalyptic number.

42091654 is a deficient number, since it is larger than the sum of its proper divisors (27731786).

42091654 is a wasteful number, since it uses less digits than its factorization.

42091654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26295.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 42091654 is about 6487.8081044371. The cubic root of 42091654 is about 347.8553313767.

The spelling of 42091654 in words is "forty-two million, ninety-one thousand, six hundred fifty-four".