1904634 has 24 divisors (see below), whose sum is σ = 4280640. Its totient is φ = 634716.

The previous prime is 1904621. The next prime is 1904647. The reversal of 1904634 is 4364091.

It is an interprime number because it is at equal distance from previous prime (1904621) and next prime (1904647).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1904598 and 1904607.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1474 + ... + 2445.

It is an arithmetic number, because the mean of its divisors is an integer number (178360).

2^1904634 is an apocalyptic number.

1904634 is an abundant number, since it is smaller than the sum of its proper divisors (2376006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1904634 is an equidigital number, since it uses as much as digits as its factorization.

1904634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936 (or 3924 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1904634 is about 1380.0847800045. The cubic root of 1904634 is about 123.9568441566.

The spelling of 1904634 in words is "one million, nine hundred four thousand, six hundred thirty-four".