42291292 has 12 divisors (see below), whose sum is σ = 75052656. Its totient is φ = 20847680.

The previous prime is 42291269. The next prime is 42291299. The reversal of 42291292 is 29219224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42291299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74173 + ... + 74740.

It is an arithmetic number, because the mean of its divisors is an integer number (6254388).

Almost surely, 2^42291292 is an apocalyptic number.

It is an amenable number.

42291292 is a deficient number, since it is larger than the sum of its proper divisors (32761364).

42291292 is a wasteful number, since it uses less digits than its factorization.

42291292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148988 (or 148986 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 42291292 is about 6503.1755319997. The cubic root of 42291292 is about 348.4044159985.

The spelling of 42291292 in words is "forty-two million, two hundred ninety-one thousand, two hundred ninety-two".