1148029640 has 16 divisors (see below), whose sum is σ = 2583066780. Its totient is φ = 459211840.

The previous prime is 1148029633. The next prime is 1148029651. The reversal of 1148029640 is 469208411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1093889476 + 54140164 = 33074^2 + 7358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1148029640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14350331 + ... + 14350410.

Almost surely, 2^1148029640 is an apocalyptic number.

1148029640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148029640 is an abundant number, since it is smaller than the sum of its proper divisors (1435037140).

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

1148029640 is a wasteful number, since it uses less digits than its factorization.

1148029640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28700752 (or 28700748 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1148029640 is about 33882.5860878416. The cubic root of 1148029640 is about 1047.0908558711.

The spelling of 1148029640 in words is "one billion, one hundred forty-eight million, twenty-nine thousand, six hundred forty".