42603730 has 16 divisors (see below), whose sum is σ = 82585944. Its totient is φ = 15730560.

The previous prime is 42603727. The next prime is 42603767. The reversal of 42603730 is 3730624.

It can be written as a sum of positive squares in 4 ways, for example, as 11923209 + 30680521 = 3453^2 + 5539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42603695 and 42603704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163731 + ... + 163990.

Almost surely, 2^42603730 is an apocalyptic number.

42603730 is a deficient number, since it is larger than the sum of its proper divisors (39982214).

42603730 is a wasteful number, since it uses less digits than its factorization.

42603730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327741.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 42603730 is about 6527.1532845491. The cubic root of 42603730 is about 349.2602880880.

The spelling of 42603730 in words is "forty-two million, six hundred three thousand, seven hundred thirty".