42620274 has 12 divisors (see below), whose sum is σ = 92343966. Its totient is φ = 14206752.

The previous prime is 42620269. The next prime is 42620293. The reversal of 42620274 is 47202624.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40640625 + 1979649 = 6375^2 + 1407^2 .

It is a super-4 number, since 4×42620274⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1183879 + ... + 1183914.

Almost surely, 2^42620274 is an apocalyptic number.

42620274 is an abundant number, since it is smaller than the sum of its proper divisors (49723692).

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

42620274 is a wasteful number, since it uses less digits than its factorization.

42620274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367801 (or 2367798 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 42620274 is about 6528.4204827814. The cubic root of 42620274 is about 349.3054908159.

Adding to 42620274 its reverse (47202624), we get a palindrome (89822898).

The spelling of 42620274 in words is "forty-two million, six hundred twenty thousand, two hundred seventy-four".