1269604 has 12 divisors (see below), whose sum is σ = 2539264. Its totient is φ = 544104.

The previous prime is 1269601. The next prime is 1269641. The reversal of 1269604 is 4069621.

1269604 is an admirable number.

It is a super-2 number, since 2×1269604² = 3223788633632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) 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 (28), and also a Moran number because the ratio is a prime number: 45343 = 1269604 / (1 + 2 + 6 + 9 + 6 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (1269601) 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, 22644 + ... + 22699.

2^1269604 is an apocalyptic number.

1269604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1269604 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.

1269604 is a wasteful number, since it uses less digits than its factorization.

1269604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45354 (or 45352 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1269604 is about 1126.7670566714. The cubic root of 1269604 is about 108.2819564406.

It can be divided in two parts, 126 and 9604, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 1269604 in words is "one million, two hundred sixty-nine thousand, six hundred four".