140432620 has 24 divisors (see below), whose sum is σ = 295243200. Its totient is φ = 56109312.

The previous prime is 140432609. The next prime is 140432627. The reversal of 140432620 is 26234041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140432591 and 140432600.

It is not an unprimeable number, because it can be changed into a prime (140432627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16701 + ... + 23659.

It is an arithmetic number, because the mean of its divisors is an integer number (12301800).

Almost surely, 2^140432620 is an apocalyptic number.

140432620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140432620 is an abundant number, since it is smaller than the sum of its proper divisors (154810580).

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

140432620 is a wasteful number, since it uses less digits than its factorization.

140432620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7977 (or 7975 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 140432620 is about 11850.4269965263. The cubic root of 140432620 is about 519.7837118250.

Adding to 140432620 its reverse (26234041), we get a palindrome (166666661).

The spelling of 140432620 in words is "one hundred forty million, four hundred thirty-two thousand, six hundred twenty".