42701890 has 32 divisors (see below), whose sum is σ = 95831424. Its totient is φ = 13309440.

The previous prime is 42701887. The next prime is 42701927. The reversal of 42701890 is 9810724.

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, 26959 + ... + 28498.

It is an arithmetic number, because the mean of its divisors is an integer number (2994732).

Almost surely, 2^42701890 is an apocalyptic number.

42701890 is an abundant number, since it is smaller than the sum of its proper divisors (53129534).

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

42701890 is a wasteful number, since it uses less digits than its factorization.

42701890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55482.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 42701890 is about 6534.6683159897. The cubic root of 42701890 is about 349.5283169955.

The spelling of 42701890 in words is "forty-two million, seven hundred one thousand, eight hundred ninety".