13453620 has 48 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 3431296.

The previous prime is 13453603. The next prime is 13453631. The reversal of 13453620 is 2635431.

It is a happy number.

It is a super-2 number, since 2×13453620² = 361999782208800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 3495 + ... + 6254.

It is an arithmetic number, because the mean of its divisors is an integer number (819000).

Almost surely, 2^13453620 is an apocalyptic number.

13453620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13453620 is an abundant number, since it is smaller than the sum of its proper divisors (25858380).

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

13453620 is a wasteful number, since it uses less digits than its factorization.

13453620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784 (or 9782 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13453620 is about 3667.9176653791. The cubic root of 13453620 is about 237.8371647033.

The spelling of 13453620 in words is "thirteen million, four hundred fifty-three thousand, six hundred twenty".