15468240 has 40 divisors (see below), whose sum is σ = 47952288. Its totient is φ = 4124800.

The previous prime is 15468239. The next prime is 15468247. The reversal of 15468240 is 4286451.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15468198 and 15468207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15468247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31986 + ... + 32465.

Almost surely, 2^15468240 is an apocalyptic number.

15468240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15468240 is an abundant number, since it is smaller than the sum of its proper divisors (32484048).

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

15468240 is a wasteful number, since it uses less digits than its factorization.

15468240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64467 (or 64461 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 15468240 is about 3932.9683446476. The cubic root of 15468240 is about 249.1611350373.

The spelling of 15468240 in words is "fifteen million, four hundred sixty-eight thousand, two hundred forty".