15422340 has 48 divisors (see below), whose sum is σ = 44356032. Its totient is φ = 4000896.

The previous prime is 15422327. The next prime is 15422369. The reversal of 15422340 is 4322451.

15422340 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 1254 + ... + 5693.

It is an arithmetic number, because the mean of its divisors is an integer number (924084).

Almost surely, 2^15422340 is an apocalyptic number.

15422340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15422340 is an abundant number, since it is smaller than the sum of its proper divisors (28933692).

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

15422340 is a wasteful number, since it uses less digits than its factorization.

15422340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996 (or 6994 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 15422340 is about 3927.1287221073. The cubic root of 15422340 is about 248.9144397250.

Adding to 15422340 its reverse (4322451), we get a palindrome (19744791).

The spelling of 15422340 in words is "fifteen million, four hundred twenty-two thousand, three hundred forty".