20735722 has 32 divisors (see below), whose sum is σ = 36691200. Its totient is φ = 8784720.

The previous prime is 20735713. The next prime is 20735731. The reversal of 20735722 is 22753702.

It is an interprime number because it is at equal distance from previous prime (20735713) and next prime (20735731).

It is a super-2 number, since 2×20735722² = 859940333722568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114472 + ... + 114652.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^20735722 is an apocalyptic number.

20735722 is a deficient number, since it is larger than the sum of its proper divisors (15955478).

20735722 is a wasteful number, since it uses less digits than its factorization.

20735722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 20735722 is about 4553.6493057766. The cubic root of 20735722 is about 274.7301904660.

The spelling of 20735722 in words is "twenty million, seven hundred thirty-five thousand, seven hundred twenty-two".