31452042 has 16 divisors (see below), whose sum is σ = 64933632. Its totient is φ = 10145760.

The previous prime is 31452041. The next prime is 31452061. The reversal of 31452042 is 24025413.

It is a super-3 number, since 3×31452042³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31452041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84363 + ... + 84734.

It is an arithmetic number, because the mean of its divisors is an integer number (4058352).

Almost surely, 2^31452042 is an apocalyptic number.

31452042 is an abundant number, since it is smaller than the sum of its proper divisors (33481590).

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

31452042 is a wasteful number, since it uses less digits than its factorization.

31452042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169133.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 31452042 is about 5608.2120145373. The cubic root of 31452042 is about 315.6576233573.

Adding to 31452042 its reverse (24025413), we get a palindrome (55477455).

The spelling of 31452042 in words is "thirty-one million, four hundred fifty-two thousand, forty-two".