13737222 has 32 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 4513320.

The previous prime is 13737221. The next prime is 13737223. The reversal of 13737222 is 22273731.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13737221) and next prime (13737223).

It is a super-2 number, since 2×13737222² = 377422536554568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13737221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^13737222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13737222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15482880).

13737222 is an abundant number, since it is smaller than the sum of its proper divisors (17228538).

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

13737222 is a wasteful number, since it uses less digits than its factorization.

13737222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665 (or 3659 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 13737222 is about 3706.3758578968. The cubic root of 13737222 is about 239.4967580188.

The spelling of 13737222 in words is "thirteen million, seven hundred thirty-seven thousand, two hundred twenty-two".