1490309802 has 48 divisors (see below), whose sum is σ = 3408649920. Its totient is φ = 470585160.

The previous prime is 1490309801. The next prime is 1490309831. The reversal of 1490309802 is 2089030941.

It is not an unprimeable number, because it can be changed into a prime (1490309801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117427 + ... + 129497.

It is an arithmetic number, because the mean of its divisors is an integer number (71013540).

Almost surely, 2^1490309802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1490309802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704324960).

1490309802 is an abundant number, since it is smaller than the sum of its proper divisors (1918340118).

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

1490309802 is a wasteful number, since it uses less digits than its factorization.

1490309802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12136 (or 12095 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1490309802 is about 38604.5308480753. The cubic root of 1490309802 is about 1142.2439136385.

The spelling of 1490309802 in words is "one billion, four hundred ninety million, three hundred nine thousand, eight hundred two".