220940974 has 16 divisors (see below), whose sum is σ = 338109408. Its totient is φ = 108260352.

The previous prime is 220940971. The next prime is 220940977. The reversal of 220940974 is 479049022.

It is an interprime number because it is at equal distance from previous prime (220940971) and next prime (220940977).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220940971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14454 + ... + 25510.

It is an arithmetic number, because the mean of its divisors is an integer number (21131838).

Almost surely, 2^220940974 is an apocalyptic number.

220940974 is a deficient number, since it is larger than the sum of its proper divisors (117168434).

220940974 is a wasteful number, since it uses less digits than its factorization.

220940974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11259.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 220940974 is about 14864.0833555252. The cubic root of 220940974 is about 604.5405285842.

Adding to 220940974 its reverse (479049022), we get a palindrome (699989996).

The spelling of 220940974 in words is "two hundred twenty million, nine hundred forty thousand, nine hundred seventy-four".