16274420 has 12 divisors (see below), whose sum is σ = 34176324. Its totient is φ = 6509760.

The previous prime is 16274399. The next prime is 16274429. The reversal of 16274420 is 2447261.

It can be written as a sum of positive squares in 2 ways, for example, as 12096484 + 4177936 = 3478^2 + 2044^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16274420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16274429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406841 + ... + 406880.

It is an arithmetic number, because the mean of its divisors is an integer number (2848027).

Almost surely, 2^16274420 is an apocalyptic number.

16274420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16274420 is an abundant number, since it is smaller than the sum of its proper divisors (17901904).

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

16274420 is a wasteful number, since it uses less digits than its factorization.

16274420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813730 (or 813728 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 16274420 is about 4034.1566652771. The cubic root of 16274420 is about 253.4166661831.

The spelling of 16274420 in words is "sixteen million, two hundred seventy-four thousand, four hundred twenty".