260821442 has 16 divisors (see below), whose sum is σ = 452148480. Its totient is φ = 110524128.

The previous prime is 260821439. The next prime is 260821489. The reversal of 260821442 is 244128062.

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, 103418 + ... + 105909.

It is an arithmetic number, because the mean of its divisors is an integer number (28259280).

Almost surely, 2^260821442 is an apocalyptic number.

260821442 is a deficient number, since it is larger than the sum of its proper divisors (191327038).

260821442 is a wasteful number, since it uses less digits than its factorization.

260821442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209425.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 260821442 is about 16149.9672445488. The cubic root of 260821442 is about 638.9218844184.

The spelling of 260821442 in words is "two hundred sixty million, eight hundred twenty-one thousand, four hundred forty-two".