253670949 has 12 divisors (see below), whose sum is σ = 418758496. Its totient is φ = 144954792.

The previous prime is 253670947. The next prime is 253670951. The reversal of 253670949 is 949076352.

It is a happy number.

253670949 is a `hidden beast` number, since 2 + 536 + 70 + 9 + 49 = 666.

It is an interprime number because it is at equal distance from previous prime (253670947) and next prime (253670951).

It is not a de Polignac number, because 253670949 - 2¹ = 253670947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253670947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2013199 + ... + 2013324.

Almost surely, 2^253670949 is an apocalyptic number.

It is an amenable number.

253670949 is a deficient number, since it is larger than the sum of its proper divisors (165087547).

253670949 is a wasteful number, since it uses less digits than its factorization.

253670949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026536 (or 4026533 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 253670949 is about 15927.0508569540. The cubic root of 253670949 is about 633.0289587914.

The spelling of 253670949 in words is "two hundred fifty-three million, six hundred seventy thousand, nine hundred forty-nine".