1626315490 has 16 divisors (see below), whose sum is σ = 3021799680. Its totient is φ = 629541360.

The previous prime is 1626315461. The next prime is 1626315491. The reversal of 1626315490 is 945136261.

It is not an unprimeable number, because it can be changed into a prime (1626315491) 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, 2622780 + ... + 2623399.

It is an arithmetic number, because the mean of its divisors is an integer number (188862480).

Almost surely, 2^1626315490 is an apocalyptic number.

1626315490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1626315490 is a deficient number, since it is larger than the sum of its proper divisors (1395484190).

1626315490 is a wasteful number, since it uses less digits than its factorization.

1626315490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5246217.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1626315490 is about 40327.6020859163. The cubic root of 1626315490 is about 1175.9845051910.

The spelling of 1626315490 in words is "one billion, six hundred twenty-six million, three hundred fifteen thousand, four hundred ninety".