1626049390 has 16 divisors (see below), whose sum is σ = 3345016032. Its totient is φ = 557502624.

The previous prime is 1626049349. The next prime is 1626049391. The reversal of 1626049390 is 939406261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1626049391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11614569 + ... + 11614708.

It is an arithmetic number, because the mean of its divisors is an integer number (209063502).

Almost surely, 2^1626049390 is an apocalyptic number.

1626049390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1626049390 is an abundant number, since it is smaller than the sum of its proper divisors (1718966642).

1626049390 is a wasteful number, since it uses less digits than its factorization.

1626049390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23229291.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 1626049390 is about 40324.3027218079. The cubic root of 1626049390 is about 1175.9203629530.

The spelling of 1626049390 in words is "one billion, six hundred twenty-six million, forty-nine thousand, three hundred ninety".