1493427220 has 24 divisors (see below), whose sum is σ = 3320680104. Its totient is φ = 562231296.

The previous prime is 1493427167. The next prime is 1493427233. The reversal of 1493427220 is 227243941.

It can be written as a sum of positive squares in 4 ways, for example, as 724363396 + 769063824 = 26914^2 + 27732^2 .

It is a super-2 number, since 2×1493427220² = 4460649722873856800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 2195877 + ... + 2196556.

It is an arithmetic number, because the mean of its divisors is an integer number (138361671).

Almost surely, 2^1493427220 is an apocalyptic number.

1493427220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1493427220 is an abundant number, since it is smaller than the sum of its proper divisors (1827252884).

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

1493427220 is a wasteful number, since it uses less digits than its factorization.

1493427220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392459 (or 4392457 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1493427220 is about 38644.8860782381. The cubic root of 1493427220 is about 1143.0398044794.

The spelling of 1493427220 in words is "one billion, four hundred ninety-three million, four hundred twenty-seven thousand, two hundred twenty".