140623230 has 32 divisors (see below), whose sum is σ = 368178048. Its totient is φ = 34090400.

The previous prime is 140623193. The next prime is 140623243. The reversal of 140623230 is 32326041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140623197 and 140623206.

It is a congruent number.

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, 212736 + ... + 213395.

It is an arithmetic number, because the mean of its divisors is an integer number (11505564).

Almost surely, 2^140623230 is an apocalyptic number.

140623230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140623230 is an abundant number, since it is smaller than the sum of its proper divisors (227554818).

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

140623230 is a wasteful number, since it uses less digits than its factorization.

140623230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426152.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 140623230 is about 11858.4665956438. The cubic root of 140623230 is about 520.0187739770.

Adding to 140623230 its reverse (32326041), we get a palindrome (172949271).

The spelling of 140623230 in words is "one hundred forty million, six hundred twenty-three thousand, two hundred thirty".