1245404 has 12 divisors (see below), whose sum is σ = 2274384. Its totient is φ = 595584.

The previous prime is 1245401. The next prime is 1245421. The reversal of 1245404 is 4045421.

It is a super-2 number, since 2×1245404² = 3102062246432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245401) 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, 6677 + ... + 6860.

It is an arithmetic number, because the mean of its divisors is an integer number (189532).

2^1245404 is an apocalyptic number.

It is an amenable number.

1245404 is a deficient number, since it is larger than the sum of its proper divisors (1028980).

1245404 is a wasteful number, since it uses less digits than its factorization.

1245404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13564 (or 13562 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1245404 is about 1115.9767022658. The cubic root of 1245404 is about 107.5895486041.

The spelling of 1245404 in words is "one million, two hundred forty-five thousand, four hundred four".