39742430 has 96 divisors (see below), whose sum is σ = 95147136. Its totient is φ = 11805696.

The previous prime is 39742399. The next prime is 39742453. The reversal of 39742430 is 3424793.

39742430 = 158² + 159² + ... + 497².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108107 + ... + 108473.

It is an arithmetic number, because the mean of its divisors is an integer number (991116).

Almost surely, 2^39742430 is an apocalyptic number.

39742430 is an abundant number, since it is smaller than the sum of its proper divisors (55404706).

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

39742430 is a wasteful number, since it uses less digits than its factorization.

39742430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 39742430 is about 6304.1597378239. The cubic root of 39742430 is about 341.2595438926.

The spelling of 39742430 in words is "thirty-nine million, seven hundred forty-two thousand, four hundred thirty".