1264361862 has 16 divisors (see below), whose sum is σ = 2552357952. Its totient is φ = 417514920.

The previous prime is 1264361851. The next prime is 1264361867. The reversal of 1264361862 is 2681634621.

It is a super-2 number, since 2×1264361862² = 3197221836160214088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1264361862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264361867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984064 + ... + 985347.

It is an arithmetic number, because the mean of its divisors is an integer number (159522372).

Almost surely, 2^1264361862 is an apocalyptic number.

1264361862 is an abundant number, since it is smaller than the sum of its proper divisors (1287996090).

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

1264361862 is a wasteful number, since it uses less digits than its factorization.

1264361862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969523.

The product of its digits is 82944, while the sum is 39.

The square root of 1264361862 is about 35557.8663870598. The cubic root of 1264361862 is about 1081.3272040744.

The spelling of 1264361862 in words is "one billion, two hundred sixty-four million, three hundred sixty-one thousand, eight hundred sixty-two".