1249698634 has 8 divisors (see below), whose sum is σ = 1875130848. Its totient is φ = 624655020.

The previous prime is 1249698631. The next prime is 1249698641. The reversal of 1249698634 is 4368969421.

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

It is not an unprimeable number, because it can be changed into a prime (1249698631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88972 + ... + 102055.

It is an arithmetic number, because the mean of its divisors is an integer number (234391356).

Almost surely, 2^1249698634 is an apocalyptic number.

1249698634 is a deficient number, since it is larger than the sum of its proper divisors (625432214).

1249698634 is a wasteful number, since it uses less digits than its factorization.

1249698634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194300.

The product of its digits is 2239488, while the sum is 52.

The square root of 1249698634 is about 35351.0768435701. The cubic root of 1249698634 is about 1077.1307682759.

The spelling of 1249698634 in words is "one billion, two hundred forty-nine million, six hundred ninety-eight thousand, six hundred thirty-four".