42294402 has 48 divisors (see below), whose sum is σ = 98181720. Its totient is φ = 13111296.

The previous prime is 42294397. The next prime is 42294409. The reversal of 42294402 is 20449224.

It can be written as a sum of positive squares in 4 ways, for example, as 27154521 + 15139881 = 5211^2 + 3891^2 .

It is not an unprimeable number, because it can be changed into a prime (42294409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26458 + ... + 28010.

Almost surely, 2^42294402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42294402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49090860).

42294402 is an abundant number, since it is smaller than the sum of its proper divisors (55887318).

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

42294402 is a wasteful number, since it uses less digits than its factorization.

42294402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1664 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42294402 is about 6503.4146415556. The cubic root of 42294402 is about 348.4129560637.

The spelling of 42294402 in words is "forty-two million, two hundred ninety-four thousand, four hundred two".