42387722 has 16 divisors (see below), whose sum is σ = 68638752. Its totient is φ = 19516080.

The previous prime is 42387713. The next prime is 42387731. The reversal of 42387722 is 22778324.

It is an interprime number because it is at equal distance from previous prime (42387713) and next prime (42387731).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10397 + ... + 13887.

It is an arithmetic number, because the mean of its divisors is an integer number (4289922).

Almost surely, 2^42387722 is an apocalyptic number.

42387722 is a deficient number, since it is larger than the sum of its proper divisors (26251030).

42387722 is a wasteful number, since it uses less digits than its factorization.

42387722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973.

The product of its digits is 37632, while the sum is 35.

The square root of 42387722 is about 6510.5853807473. The cubic root of 42387722 is about 348.6690184226.

The spelling of 42387722 in words is "forty-two million, three hundred eighty-seven thousand, seven hundred twenty-two".