140757428 has 24 divisors (see below), whose sum is σ = 288383424. Its totient is φ = 58852800.

The previous prime is 140757413. The next prime is 140757443. The reversal of 140757428 is 824757041.

It is an interprime number because it is at equal distance from previous prime (140757413) and next prime (140757443).

It is a junction number, because it is equal to n+sod(n) for n = 140757391 and 140757400.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 60158 + ... + 62453.

It is an arithmetic number, because the mean of its divisors is an integer number (12015976).

Almost surely, 2^140757428 is an apocalyptic number.

It is an amenable number.

140757428 is an abundant number, since it is smaller than the sum of its proper divisors (147625996).

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

140757428 is a wasteful number, since it uses less digits than its factorization.

140757428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122663 (or 122661 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 140757428 is about 11864.1235664502. The cubic root of 140757428 is about 520.1841408993.

The spelling of 140757428 in words is "one hundred forty million, seven hundred fifty-seven thousand, four hundred twenty-eight".