1260420634 has 8 divisors (see below), whose sum is σ = 2062506528. Its totient is φ = 572918460.

The previous prime is 1260420593. The next prime is 1260420641. The reversal of 1260420634 is 4360240621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1260420634² = 3177320349225923912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28645902 + ... + 28645945.

It is an arithmetic number, because the mean of its divisors is an integer number (257813316).

Almost surely, 2^1260420634 is an apocalyptic number.

1260420634 is a deficient number, since it is larger than the sum of its proper divisors (802085894).

1260420634 is a wasteful number, since it uses less digits than its factorization.

1260420634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57291860.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1260420634 is about 35502.4032144304. The cubic root of 1260420634 is about 1080.2024751840.

The spelling of 1260420634 in words is "one billion, two hundred sixty million, four hundred twenty thousand, six hundred thirty-four".