140023410 has 64 divisors (see below), whose sum is σ = 342486144. Its totient is φ = 36633600.

The previous prime is 140023409. The next prime is 140023421. The reversal of 140023410 is 14320041.

140023410 = T₁₅₆₄ + T₁₅₆₅ + ... + T₁₆₇₀.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 140023410.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580890 + ... + 581130.

It is an arithmetic number, because the mean of its divisors is an integer number (5351346).

Almost surely, 2^140023410 is an apocalyptic number.

140023410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140023410 is an abundant number, since it is smaller than the sum of its proper divisors (202462734).

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

140023410 is a wasteful number, since it uses less digits than its factorization.

140023410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 140023410 is about 11833.1487779035. The cubic root of 140023410 is about 519.2783505452.

Adding to 140023410 its reverse (14320041), we get a palindrome (154343451).

The spelling of 140023410 in words is "one hundred forty million, twenty-three thousand, four hundred ten".