101430440 has 32 divisors (see below), whose sum is σ = 232092000. Its totient is φ = 39883584.

The previous prime is 101430403. The next prime is 101430451. The reversal of 101430440 is 44034101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19130 + ... + 23849.

It is an arithmetic number, because the mean of its divisors is an integer number (7252875).

Almost surely, 2^101430440 is an apocalyptic number.

101430440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101430440 is an abundant number, since it is smaller than the sum of its proper divisors (130661560).

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

101430440 is a wasteful number, since it uses less digits than its factorization.

101430440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43049 (or 43045 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 101430440 is about 10071.2680433002. The cubic root of 101430440 is about 466.3615851781.

Adding to 101430440 its reverse (44034101), we get a palindrome (145464541).

The spelling of 101430440 in words is "one hundred one million, four hundred thirty thousand, four hundred forty".