16220742 has 16 divisors (see below), whose sum is σ = 32517120. Its totient is φ = 5394312.

The previous prime is 16220713. The next prime is 16220759. The reversal of 16220742 is 24702261.

16220742 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16220742² = 526224942061128, which contains 22 as substring.

It is a congruent number.

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, 142 + ... + 5697.

It is an arithmetic number, because the mean of its divisors is an integer number (2032320).

Almost surely, 2^16220742 is an apocalyptic number.

16220742 is an abundant number, since it is smaller than the sum of its proper divisors (16296378).

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

16220742 is a wasteful number, since it uses less digits than its factorization.

16220742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 16220742 is about 4027.4982309121. The cubic root of 16220742 is about 253.1377441534.

The spelling of 16220742 in words is "sixteen million, two hundred twenty thousand, seven hundred forty-two".