42490814 has 4 divisors (see below), whose sum is σ = 63736224. Its totient is φ = 21245406.

The previous prime is 42490813. The next prime is 42490817. The reversal of 42490814 is 41809424.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42490813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10622702 + ... + 10622705.

It is an arithmetic number, because the mean of its divisors is an integer number (15934056).

Almost surely, 2^42490814 is an apocalyptic number.

42490814 is a deficient number, since it is larger than the sum of its proper divisors (21245410).

42490814 is a wasteful number, since it uses less digits than its factorization.

42490814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21245409.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 42490814 is about 6518.4978330901. The cubic root of 42490814 is about 348.9514577960.

The spelling of 42490814 in words is "forty-two million, four hundred ninety thousand, eight hundred fourteen".