42503739 has 16 divisors (see below), whose sum is σ = 57709344. Its totient is φ = 27820800.

The previous prime is 42503633. The next prime is 42503749. The reversal of 42503739 is 93730524.

It is a happy number.

It is not a de Polignac number, because 42503739 - 2⁷ = 42503611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42503749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91969 + ... + 92429.

It is an arithmetic number, because the mean of its divisors is an integer number (3606834).

Almost surely, 2^42503739 is an apocalyptic number.

42503739 is a deficient number, since it is larger than the sum of its proper divisors (15205605).

42503739 is a wasteful number, since it uses less digits than its factorization.

42503739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 42503739 is about 6519.4891671050. The cubic root of 42503739 is about 348.9868359553.

The spelling of 42503739 in words is "forty-two million, five hundred three thousand, seven hundred thirty-nine".