42479357 has 4 divisors (see below), whose sum is σ = 43061340. Its totient is φ = 41897376.

The previous prime is 42479329. The next prime is 42479377. The reversal of 42479357 is 75397424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21585316 + 20894041 = 4646^2 + 4571^2 .

It is a cyclic number.

It is not a de Polignac number, because 42479357 - 2¹⁶ = 42413821 is a prime.

It is a super-2 number, since 2×42479357² = 3608991542266898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42479377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290882 + ... + 291027.

It is an arithmetic number, because the mean of its divisors is an integer number (10765335).

Almost surely, 2^42479357 is an apocalyptic number.

It is an amenable number.

42479357 is a deficient number, since it is larger than the sum of its proper divisors (581983).

42479357 is an equidigital number, since it uses as much as digits as its factorization.

42479357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581982.

The product of its digits is 211680, while the sum is 41.

The square root of 42479357 is about 6517.6189670769. The cubic root of 42479357 is about 348.9200918303.

The spelling of 42479357 in words is "forty-two million, four hundred seventy-nine thousand, three hundred fifty-seven".