1391449104 has 60 divisors (see below), whose sum is σ = 4038363056. Its totient is φ = 463815072.

The previous prime is 1391449093. The next prime is 1391449123. The reversal of 1391449104 is 4019441931.

It is a super-2 number, since 2×1391449104² = 3872261218044805632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175054 + ... + 182829.

Almost surely, 2^1391449104 is an apocalyptic number.

It is an amenable number.

1391449104 is an abundant number, since it is smaller than the sum of its proper divisors (2646913952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391449104 is an equidigital number, since it uses as much as digits as its factorization.

1391449104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357906 (or 357888 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1391449104 is about 37302.1327004234. The cubic root of 1391449104 is about 1116.4067196014.

The spelling of 1391449104 in words is "one billion, three hundred ninety-one million, four hundred forty-nine thousand, one hundred four".