1900630 has 8 divisors (see below), whose sum is σ = 3421152. Its totient is φ = 760248.

The previous prime is 1900621. The next prime is 1900667. The reversal of 1900630 is 360091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1900630² = 7224788793800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900598 and 1900607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95022 + ... + 95041.

It is an arithmetic number, because the mean of its divisors is an integer number (427644).

2^1900630 is an apocalyptic number.

1900630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1900630 is a deficient number, since it is larger than the sum of its proper divisors (1520522).

1900630 is a wasteful number, since it uses less digits than its factorization.

1900630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190070.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1900630 is about 1378.6333812874. The cubic root of 1900630 is about 123.8699208234.

The spelling of 1900630 in words is "one million, nine hundred thousand, six hundred thirty".