20739116 has 24 divisors (see below), whose sum is σ = 38782800. Its totient is φ = 9669632.

The previous prime is 20739109. The next prime is 20739139. The reversal of 20739116 is 61193702.

It is a super-2 number, since 2×20739116² = 860221864922912, which contains 22 as substring.

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, 6335 + ... + 9033.

It is an arithmetic number, because the mean of its divisors is an integer number (1615950).

Almost surely, 2^20739116 is an apocalyptic number.

It is an amenable number.

20739116 is a deficient number, since it is larger than the sum of its proper divisors (18043684).

20739116 is a wasteful number, since it uses less digits than its factorization.

20739116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 20739116 is about 4554.0219586647. The cubic root of 20739116 is about 274.7451788259.

The spelling of 20739116 in words is "twenty million, seven hundred thirty-nine thousand, one hundred sixteen".