42298140 has 48 divisors (see below), whose sum is σ = 119780640. Its totient is φ = 11152768.

The previous prime is 42298129. The next prime is 42298163. The reversal of 42298140 is 4189224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42298098 and 42298107.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 445 × 267 × 356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475216 + ... + 475304.

It is an arithmetic number, because the mean of its divisors is an integer number (2495430).

Almost surely, 2^42298140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42298140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59890320).

42298140 is an abundant number, since it is smaller than the sum of its proper divisors (77482500).

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

42298140 is an frugal number, since it uses more digits than its factorization.

42298140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 42298140 is about 6503.7020226945. The cubic root of 42298140 is about 348.4232200640.

The spelling of 42298140 in words is "forty-two million, two hundred ninety-eight thousand, one hundred forty".