1490927688 has 64 divisors (see below), whose sum is σ = 4161220800. Its totient is φ = 494605440.

The previous prime is 1490927687. The next prime is 1490927707. The reversal of 1490927688 is 8867290941.

1490927688 is a `hidden beast` number, since 1 + 490 + 9 + 2 + 76 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1490927681) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29220 + ... + 61932.

It is an arithmetic number, because the mean of its divisors is an integer number (65019075).

Almost surely, 2^1490927688 is an apocalyptic number.

1490927688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1490927688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2080610400).

1490927688 is an abundant number, since it is smaller than the sum of its proper divisors (2670293112).

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

1490927688 is a wasteful number, since it uses less digits than its factorization.

1490927688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32939 (or 32929 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 1490927688 is about 38612.5327840586. The cubic root of 1490927688 is about 1142.4017508447.

The spelling of 1490927688 in words is "one billion, four hundred ninety million, nine hundred twenty-seven thousand, six hundred eighty-eight".