15764340 has 24 divisors (see below), whose sum is σ = 44140320. Its totient is φ = 4203808.

The previous prime is 15764327. The next prime is 15764393. The reversal of 15764340 is 4346751.

15764340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 15764298 and 15764307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131310 + ... + 131429.

It is an arithmetic number, because the mean of its divisors is an integer number (1839180).

Almost surely, 2^15764340 is an apocalyptic number.

15764340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15764340 is an abundant number, since it is smaller than the sum of its proper divisors (28375980).

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

15764340 is a wasteful number, since it uses less digits than its factorization.

15764340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262751 (or 262749 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 15764340 is about 3970.4332257324. The cubic root of 15764340 is about 250.7409484786.

The spelling of 15764340 in words is "fifteen million, seven hundred sixty-four thousand, three hundred forty".