31420462 has 4 divisors (see below), whose sum is σ = 47130696. Its totient is φ = 15710230.

The previous prime is 31420457. The next prime is 31420463. The reversal of 31420462 is 26402413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26402413 = 23 ⋅1147931.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7855114 + ... + 7855117.

It is an arithmetic number, because the mean of its divisors is an integer number (11782674).

Almost surely, 2^31420462 is an apocalyptic number.

31420462 is a deficient number, since it is larger than the sum of its proper divisors (15710234).

31420462 is a wasteful number, since it uses less digits than its factorization.

31420462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15710233.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 31420462 is about 5605.3957933406. The cubic root of 31420462 is about 315.5519407019.

Adding to 31420462 its reverse (26402413), we get a palindrome (57822875).

The spelling of 31420462 in words is "thirty-one million, four hundred twenty thousand, four hundred sixty-two".