1263342604 has 18 divisors (see below), whose sum is σ = 2333336964. Its totient is φ = 598424760.

The previous prime is 1263342601. The next prime is 1263342617. The reversal of 1263342604 is 4062433621.

It is not an unprimeable number, because it can be changed into a prime (1263342601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 436002 + ... + 438889.

Almost surely, 2^1263342604 is an apocalyptic number.

It is an amenable number.

1263342604 is a deficient number, since it is larger than the sum of its proper divisors (1069994360).

1263342604 is a wasteful number, since it uses less digits than its factorization.

1263342604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874933 (or 874912 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 1263342604 is about 35543.5311132701. The cubic root of 1263342604 is about 1081.0365574029.

The spelling of 1263342604 in words is "one billion, two hundred sixty-three million, three hundred forty-two thousand, six hundred four".