31420602 has 16 divisors (see below), whose sum is σ = 69823680. Its totient is φ = 10473516.

The previous prime is 31420579. The next prime is 31420603. The reversal of 31420602 is 20602413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31420603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290878 + ... + 290985.

It is an arithmetic number, because the mean of its divisors is an integer number (4363980).

Almost surely, 2^31420602 is an apocalyptic number.

31420602 is an abundant number, since it is smaller than the sum of its proper divisors (38403078).

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

31420602 is a wasteful number, since it uses less digits than its factorization.

31420602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581874 (or 581868 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 31420602 is about 5605.4082812941. The cubic root of 31420602 is about 315.5524093690.

The spelling of 31420602 in words is "thirty-one million, four hundred twenty thousand, six hundred two".