42391254 has 32 divisors (see below), whose sum is σ = 89558784. Its totient is φ = 13349600.

The previous prime is 42391241. The next prime is 42391259. The reversal of 42391254 is 45219324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42391259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9604 + ... + 13304.

It is an arithmetic number, because the mean of its divisors is an integer number (2798712).

Almost surely, 2^42391254 is an apocalyptic number.

42391254 is an abundant number, since it is smaller than the sum of its proper divisors (47167530).

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

42391254 is a wasteful number, since it uses less digits than its factorization.

42391254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812.

The product of its digits is 8640, while the sum is 30.

The square root of 42391254 is about 6510.8566256676. The cubic root of 42391254 is about 348.6787025537.

The spelling of 42391254 in words is "forty-two million, three hundred ninety-one thousand, two hundred fifty-four".