1549401132 has 24 divisors (see below), whose sum is σ = 3805547200. Its totient is φ = 489284496.

The previous prime is 1549401103. The next prime is 1549401137. The reversal of 1549401132 is 2311049451.

It is a self number, because there is not a number n which added to its sum of digits gives 1549401132.

It is not an unprimeable number, because it can be changed into a prime (1549401137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3397582 + ... + 3398037.

Almost surely, 2^1549401132 is an apocalyptic number.

1549401132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1549401132 is an abundant number, since it is smaller than the sum of its proper divisors (2256146068).

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

1549401132 is a wasteful number, since it uses less digits than its factorization.

1549401132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795645 (or 6795643 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1549401132 is about 39362.4330040713. The cubic root of 1549401132 is about 1157.1454614700.

The spelling of 1549401132 in words is "one billion, five hundred forty-nine million, four hundred one thousand, one hundred thirty-two".