1149026398 has 32 divisors (see below), whose sum is σ = 1880222400. Its totient is φ = 523480320.

The previous prime is 1149026369. The next prime is 1149026423. The reversal of 1149026398 is 8936209411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708028 + ... + 709648.

It is an arithmetic number, because the mean of its divisors is an integer number (58756950).

Almost surely, 2^1149026398 is an apocalyptic number.

1149026398 is a deficient number, since it is larger than the sum of its proper divisors (731196002).

1149026398 is a wasteful number, since it uses less digits than its factorization.

1149026398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 1149026398 is about 33897.2918977313. The cubic root of 1149026398 is about 1047.3938080596.

The spelling of 1149026398 in words is "one billion, one hundred forty-nine million, twenty-six thousand, three hundred ninety-eight".