1055404 has 12 divisors (see below), whose sum is σ = 2110864. Its totient is φ = 452304.

The previous prime is 1055399. The next prime is 1055407. The reversal of 1055404 is 4045501.

1055404 is an admirable number.

It is a super-2 number, since 2×1055404² = 2227755206432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18819 + ... + 18874.

2^1055404 is an apocalyptic number.

1055404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1055404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1055404 is a wasteful number, since it uses less digits than its factorization.

1055404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37704 (or 37702 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1055404 is about 1027.3285745077. The cubic root of 1055404 is about 101.8137058368.

The spelling of 1055404 in words is "one million, fifty-five thousand, four hundred four".