1049490387 has 24 divisors (see below), whose sum is σ = 1666387008. Its totient is φ = 631191600.

The previous prime is 1049490353. The next prime is 1049490389. The reversal of 1049490387 is 7830949401.

It is not a de Polignac number, because 1049490387 - 2⁸ = 1049490131 is a prime.

It is a super-2 number, since 2×1049490387² = 2202860144810819538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1049490389) 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, 27493 + ... + 53430.

It is an arithmetic number, because the mean of its divisors is an integer number (69432792).

Almost surely, 2^1049490387 is an apocalyptic number.

1049490387 is a deficient number, since it is larger than the sum of its proper divisors (616896621).

1049490387 is a wasteful number, since it uses less digits than its factorization.

1049490387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81071 (or 81068 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1049490387 is about 32395.8390383703. The cubic root of 1049490387 is about 1016.2318956665.

The spelling of 1049490387 in words is "one billion, forty-nine million, four hundred ninety thousand, three hundred eighty-seven".