253968946 has 16 divisors (see below), whose sum is σ = 474955200. Its totient is φ = 98948880.

The previous prime is 253968943. The next prime is 253968973. The reversal of 253968946 is 649869352.

It is a junction number, because it is equal to n+sod(n) for n = 253968893 and 253968902.

It is not an unprimeable number, because it can be changed into a prime (253968941) 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, 824421 + ... + 824728.

It is an arithmetic number, because the mean of its divisors is an integer number (29684700).

Almost surely, 2^253968946 is an apocalyptic number.

253968946 is a deficient number, since it is larger than the sum of its proper divisors (220986254).

253968946 is a wasteful number, since it uses less digits than its factorization.

253968946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649169.

The product of its digits is 2799360, while the sum is 52.

The square root of 253968946 is about 15936.4031701008. The cubic root of 253968946 is about 633.2767429276.

The spelling of 253968946 in words is "two hundred fifty-three million, nine hundred sixty-eight thousand, nine hundred forty-six".