13740420 has 96 divisors (see below), whose sum is σ = 42940800. Its totient is φ = 3262464.

The previous prime is 13740413. The next prime is 13740421. The reversal of 13740420 is 2404731.

13740420 = T₇₆ + T₇₇ + ... + T₄₃₅.

It is not an unprimeable number, because it can be changed into a prime (13740421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19026 + ... + 19734.

It is an arithmetic number, because the mean of its divisors is an integer number (447300).

Almost surely, 2^13740420 is an apocalyptic number.

13740420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13740420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21470400).

13740420 is an abundant number, since it is smaller than the sum of its proper divisors (29200380).

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

13740420 is a wasteful number, since it uses less digits than its factorization.

13740420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 13740420 is about 3706.8072515306. The cubic root of 13740420 is about 239.5153413783.

The spelling of 13740420 in words is "thirteen million, seven hundred forty thousand, four hundred twenty".