15961464 has 48 divisors (see below), whose sum is σ = 44291520. Its totient is φ = 5189760.

The previous prime is 15961457. The next prime is 15961469. The reversal of 15961464 is 46416951.

15961464 is a `hidden beast` number, since 1 + 596 + 1 + 4 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15961469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249 + ... + 5655.

It is an arithmetic number, because the mean of its divisors is an integer number (922740).

Almost surely, 2^15961464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15961464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22145760).

15961464 is an abundant number, since it is smaller than the sum of its proper divisors (28330056).

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

15961464 is a wasteful number, since it uses less digits than its factorization.

15961464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460 (or 5453 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 15961464 is about 3995.1800960658. The cubic root of 15961464 is about 251.7817460238.

The spelling of 15961464 in words is "fifteen million, nine hundred sixty-one thousand, four hundred sixty-four".