13905474 has 32 divisors (see below), whose sum is σ = 30862080. Its totient is φ = 4141200.

The previous prime is 13905461. The next prime is 13905481. The reversal of 13905474 is 47450931.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109 + ... + 5679.

It is an arithmetic number, because the mean of its divisors is an integer number (964440).

Almost surely, 2^13905474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13905474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15431040).

13905474 is an abundant number, since it is smaller than the sum of its proper divisors (16956606).

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

13905474 is a wasteful number, since it uses less digits than its factorization.

13905474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 13905474 is about 3729.0044247761. The cubic root of 13905474 is about 240.4705698028.

Subtracting from 13905474 its sum of digits (33), we obtain a square (13905441 = 3729²).

It can be divided in two parts, 139054 and 74, that added together give a triangular number (139128 = T₅₂₇).

The spelling of 13905474 in words is "thirteen million, nine hundred five thousand, four hundred seventy-four".