1001432140 has 12 divisors (see below), whose sum is σ = 2103007536. Its totient is φ = 400572848.

The previous prime is 1001432123. The next prime is 1001432143. The reversal of 1001432140 is 412341001.

It is not an unprimeable number, because it can be changed into a prime (1001432143) 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, 25035784 + ... + 25035823.

It is an arithmetic number, because the mean of its divisors is an integer number (175250628).

Almost surely, 2^1001432140 is an apocalyptic number.

1001432140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001432140 is an abundant number, since it is smaller than the sum of its proper divisors (1101575396).

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

1001432140 is a wasteful number, since it uses less digits than its factorization.

1001432140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50071616 (or 50071614 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1001432140 is about 31645.4126217371. The cubic root of 1001432140 is about 1000.4771522895.

Adding to 1001432140 its reverse (412341001), we get a palindrome (1413773141).

The spelling of 1001432140 in words is "one billion, one million, four hundred thirty-two thousand, one hundred forty".