1253921662 has 48 divisors (see below), whose sum is σ = 2271564000. Its totient is φ = 516997824.

The previous prime is 1253921653. The next prime is 1253921677. The reversal of 1253921662 is 2661293521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1019664 + ... + 1020892.

It is an arithmetic number, because the mean of its divisors is an integer number (47324250).

Almost surely, 2^1253921662 is an apocalyptic number.

1253921662 is a deficient number, since it is larger than the sum of its proper divisors (1017642338).

1253921662 is a wasteful number, since it uses less digits than its factorization.

1253921662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633 (or 1626 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 1253921662 is about 35410.7563036996. The cubic root of 1253921662 is about 1078.3426975886.

The spelling of 1253921662 in words is "one billion, two hundred fifty-three million, nine hundred twenty-one thousand, six hundred sixty-two".