42851910 has 32 divisors (see below), whose sum is σ = 103034592. Its totient is φ = 11406080.

The previous prime is 42851899. The next prime is 42851911. The reversal of 42851910 is 1915824.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42851911) 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, 21892 + ... + 23768.

It is an arithmetic number, because the mean of its divisors is an integer number (3219831).

Almost surely, 2^42851910 is an apocalyptic number.

42851910 is an abundant number, since it is smaller than the sum of its proper divisors (60182682).

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

42851910 is a wasteful number, since it uses less digits than its factorization.

42851910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 42851910 is about 6546.1370288133. The cubic root of 42851910 is about 349.9371587858.

The spelling of 42851910 in words is "forty-two million, eight hundred fifty-one thousand, nine hundred ten".