12401390 has 8 divisors (see below), whose sum is σ = 22322520. Its totient is φ = 4960552.

The previous prime is 12401369. The next prime is 12401399. The reversal of 12401390 is 9310421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620060 + ... + 620079.

It is an arithmetic number, because the mean of its divisors is an integer number (2790315).

Almost surely, 2^12401390 is an apocalyptic number.

12401390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12401390 is a deficient number, since it is larger than the sum of its proper divisors (9921130).

12401390 is a wasteful number, since it uses less digits than its factorization.

12401390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240146.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12401390 is about 3521.5607335385. The cubic root of 12401390 is about 231.4675537283.

The spelling of 12401390 in words is "twelve million, four hundred one thousand, three hundred ninety".