1490732099 has 4 divisors (see below), whose sum is σ = 1490809320. Its totient is φ = 1490654880.

The previous prime is 1490732093. The next prime is 1490732101. The reversal of 1490732099 is 9902370941.

It is a Cunningham number, because it is equal to 38610²-1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1490732099 - 2²⁸ = 1222296643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1490732093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19304 + ... + 57914.

It is an arithmetic number, because the mean of its divisors is an integer number (372702330).

Almost surely, 2^1490732099 is an apocalyptic number.

1490732099 is a deficient number, since it is larger than the sum of its proper divisors (77221).

1490732099 is an equidigital number, since it uses as much as digits as its factorization.

1490732099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77220.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1490732099 is about 38609.9999870500. Note that the first 4 decimals coincide. The cubic root of 1490732099 is about 1142.3517929137.

The spelling of 1490732099 in words is "one billion, four hundred ninety million, seven hundred thirty-two thousand, ninety-nine".