15397950 has 24 divisors (see below), whose sum is σ = 38187288. Its totient is φ = 4106080.

The previous prime is 15397939. The next prime is 15397951. The reversal of 15397950 is 5979351.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15397899 and 15397908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15397951) 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, 51177 + ... + 51476.

It is an arithmetic number, because the mean of its divisors is an integer number (1591137).

Almost surely, 2^15397950 is an apocalyptic number.

15397950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15397950 is an abundant number, since it is smaller than the sum of its proper divisors (22789338).

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

15397950 is a wasteful number, since it uses less digits than its factorization.

15397950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102668 (or 102663 counting only the distinct ones).

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 15397950 is about 3924.0221711912. The cubic root of 15397950 is about 248.7831534138.

The spelling of 15397950 in words is "fifteen million, three hundred ninety-seven thousand, nine hundred fifty".