31146430 has 32 divisors (see below), whose sum is σ = 65442816. Its totient is φ = 10450464.

The previous prime is 31146421. The next prime is 31146433. The reversal of 31146430 is 3464113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31146433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444 + ... + 8023.

It is an arithmetic number, because the mean of its divisors is an integer number (2045088).

Almost surely, 2^31146430 is an apocalyptic number.

31146430 is an abundant number, since it is smaller than the sum of its proper divisors (34296386).

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

31146430 is a wasteful number, since it uses less digits than its factorization.

31146430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9528.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 31146430 is about 5580.8986731529. The cubic root of 31146430 is about 314.6319039469.

The spelling of 31146430 in words is "thirty-one million, one hundred forty-six thousand, four hundred thirty".