1149403888 has 10 divisors (see below), whose sum is σ = 2226970064. Its totient is φ = 574701936.

The previous prime is 1149403861. The next prime is 1149403897. The reversal of 1149403888 is 8883049411.

It is a super-2 number, since 2×1149403888² = 2642258595499033088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35918856 + ... + 35918887.

Almost surely, 2^1149403888 is an apocalyptic number.

It is an amenable number.

1149403888 is a deficient number, since it is larger than the sum of its proper divisors (1077566176).

1149403888 is an equidigital number, since it uses as much as digits as its factorization.

1149403888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71837751 (or 71837745 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 1149403888 is about 33902.8595844067. The cubic root of 1149403888 is about 1047.5084957056.

It can be divided in two parts, 114940 and 3888, that added together give a triangular number (118828 = T₄₈₇).

The spelling of 1149403888 in words is "one billion, one hundred forty-nine million, four hundred three thousand, eight hundred eighty-eight".