1422186864 has 80 divisors (see below), whose sum is σ = 4212563712. Its totient is φ = 405010944.

The previous prime is 1422186827. The next prime is 1422186869. The reversal of 1422186864 is 4686812241.

It is a super-2 number, since 2×1422186864² = 4045230952268308992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422186869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98407 + ... + 111929.

Almost surely, 2^1422186864 is an apocalyptic number.

1422186864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422186864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2106281856).

1422186864 is an abundant number, since it is smaller than the sum of its proper divisors (2790376848).

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

1422186864 is a wasteful number, since it uses less digits than its factorization.

1422186864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13854 (or 13848 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 1422186864 is about 37711.8928721431. The cubic root of 1422186864 is about 1124.5675675294.

The spelling of 1422186864 in words is "one billion, four hundred twenty-two million, one hundred eighty-six thousand, eight hundred sixty-four".