42311402 has 48 divisors (see below), whose sum is σ = 79227720. Its totient is φ = 16837632.

The previous prime is 42311389. The next prime is 42311407. The reversal of 42311402 is 20411324.

It can be written as a sum of positive squares in 4 ways, for example, as 38551681 + 3759721 = 6209^2 + 1939^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (42311407) 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, 181478 + ... + 181710.

Almost surely, 2^42311402 is an apocalyptic number.

42311402 is a deficient number, since it is larger than the sum of its proper divisors (36916318).

42311402 is a wasteful number, since it uses less digits than its factorization.

42311402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42311402 is about 6504.7215159452. The cubic root of 42311402 is about 348.4596306950.

Adding to 42311402 its reverse (20411324), we get a palindrome (62722726).

The spelling of 42311402 in words is "forty-two million, three hundred eleven thousand, four hundred two".