1263426342 has 16 divisors (see below), whose sum is σ = 2527578480. Its totient is φ = 421021152.

The previous prime is 1263426323. The next prime is 1263426389. The reversal of 1263426342 is 2436243621.

It is a super-2 number, since 2×1263426342² = 3192492243319001928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6133 + ... + 50640.

It is an arithmetic number, because the mean of its divisors is an integer number (157973655).

Almost surely, 2^1263426342 is an apocalyptic number.

1263426342 is an abundant number, since it is smaller than the sum of its proper divisors (1264152138).

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

1263426342 is a wasteful number, since it uses less digits than its factorization.

1263426342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60487.

The product of its digits is 41472, while the sum is 33.

The square root of 1263426342 is about 35544.7090577487. The cubic root of 1263426342 is about 1081.0604416179.

Adding to 1263426342 its reverse (2436243621), we get a palindrome (3699669963).

The spelling of 1263426342 in words is "one billion, two hundred sixty-three million, four hundred twenty-six thousand, three hundred forty-two".