42154437 has 24 divisors (see below), whose sum is σ = 62138272. Its totient is φ = 25269120.

The previous prime is 42154417. The next prime is 42154439. The reversal of 42154437 is 73445124.

It is not a de Polignac number, because 42154437 - 2⁸ = 42154181 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42154439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65238 + ... + 65880.

Almost surely, 2^42154437 is an apocalyptic number.

It is an amenable number.

42154437 is a deficient number, since it is larger than the sum of its proper divisors (19983835).

42154437 is a wasteful number, since it uses less digits than its factorization.

42154437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 700 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 42154437 is about 6492.6448385847. The cubic root of 42154437 is about 348.0281966187.

The spelling of 42154437 in words is "forty-two million, one hundred fifty-four thousand, four hundred thirty-seven".