31377434 has 8 divisors (see below), whose sum is σ = 51344928. Its totient is φ = 14262460.

The previous prime is 31377433. The next prime is 31377469. The reversal of 31377434 is 43477313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×31377434³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31377434.

It is not an unprimeable number, because it can be changed into a prime (31377433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713102 + ... + 713145.

It is an arithmetic number, because the mean of its divisors is an integer number (6418116).

Almost surely, 2^31377434 is an apocalyptic number.

31377434 is a deficient number, since it is larger than the sum of its proper divisors (19967494).

31377434 is a wasteful number, since it uses less digits than its factorization.

31377434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426260.

The product of its digits is 21168, while the sum is 32.

The square root of 31377434 is about 5601.5563908614. The cubic root of 31377434 is about 315.4078332150.

The spelling of 31377434 in words is "thirty-one million, three hundred seventy-seven thousand, four hundred thirty-four".