140428632 has 16 divisors (see below), whose sum is σ = 351071640. Its totient is φ = 46809536.

The previous prime is 140428627. The next prime is 140428633. The reversal of 140428632 is 236824041.

It is a self number, because there is not a number n which added to its sum of digits gives 140428632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140428633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2925573 + ... + 2925620.

Almost surely, 2^140428632 is an apocalyptic number.

140428632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140428632 is an abundant number, since it is smaller than the sum of its proper divisors (210643008).

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

140428632 is a wasteful number, since it uses less digits than its factorization.

140428632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851202 (or 5851198 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 140428632 is about 11850.2587313527. The cubic root of 140428632 is about 519.7787915126.

The spelling of 140428632 in words is "one hundred forty million, four hundred twenty-eight thousand, six hundred thirty-two".