1489156740 has 72 divisors (see below), whose sum is σ = 4584565440. Its totient is φ = 391178304.

The previous prime is 1489156733. The next prime is 1489156751. The reversal of 1489156740 is 476519841.

1489156740 is a `hidden beast` number, since 1 + 4 + 89 + 1 + 567 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 49680 + ... + 73799.

It is an arithmetic number, because the mean of its divisors is an integer number (63674520).

Almost surely, 2^1489156740 is an apocalyptic number.

1489156740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489156740 is an abundant number, since it is smaller than the sum of its proper divisors (3095408700).

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

1489156740 is a wasteful number, since it uses less digits than its factorization.

1489156740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123561 (or 123556 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1489156740 is about 38589.5936749793. The cubic root of 1489156740 is about 1141.9492505484.

It can be divided in two parts, 14891 and 56740, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 1489156740 in words is "one billion, four hundred eighty-nine million, one hundred fifty-six thousand, seven hundred forty".