1264620 has 48 divisors (see below), whose sum is σ = 4048128. Its totient is φ = 288960.

The previous prime is 1264607. The next prime is 1264643. The reversal of 1264620 is 264621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (84336).

2^1264620 is an apocalyptic number.

1264620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1264620 is an abundant number, since it is smaller than the sum of its proper divisors (2783508).

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

1264620 is a wasteful number, since it uses less digits than its factorization.

1264620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030 (or 3028 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1264620 is about 1124.5532446265. The cubic root of 1264620 is about 108.1400788664.

Subtracting from 1264620 its reverse (264621), we obtain a palindrome (999999).

The spelling of 1264620 in words is "one million, two hundred sixty-four thousand, six hundred twenty".