1630042250 has 32 divisors (see below), whose sum is σ = 3116385792. Its totient is φ = 638139600.

The previous prime is 1630042163. The next prime is 1630042261. The reversal of 1630042250 is 522400361.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57614 + ... + 81113.

It is an arithmetic number, because the mean of its divisors is an integer number (97387056).

Almost surely, 2^1630042250 is an apocalyptic number.

1630042250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630042250 is a deficient number, since it is larger than the sum of its proper divisors (1486343542).

1630042250 is a wasteful number, since it uses less digits than its factorization.

1630042250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138791 (or 138781 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1630042250 is about 40373.7817153657. The cubic root of 1630042250 is about 1176.8820900814.

The spelling of 1630042250 in words is "one billion, six hundred thirty million, forty-two thousand, two hundred fifty".