13249474 has 8 divisors (see below), whose sum is σ = 22713408. Its totient is φ = 5678340.

The previous prime is 13249463. The next prime is 13249487. The reversal of 13249474 is 47494231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13249474² = 351097122553352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473182 + ... + 473209.

It is an arithmetic number, because the mean of its divisors is an integer number (2839176).

Almost surely, 2^13249474 is an apocalyptic number.

13249474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13249474 is a deficient number, since it is larger than the sum of its proper divisors (9463934).

13249474 is an equidigital number, since it uses as much as digits as its factorization.

13249474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946400.

The product of its digits is 24192, while the sum is 34.

The square root of 13249474 is about 3639.9826922665. The cubic root of 13249474 is about 236.6280432463.

The spelling of 13249474 in words is "thirteen million, two hundred forty-nine thousand, four hundred seventy-four".