34731980 has 12 divisors (see below), whose sum is σ = 72937200. Its totient is φ = 13892784.

The previous prime is 34731979. The next prime is 34731989. The reversal of 34731980 is 8913743.

It is a self number, because there is not a number n which added to its sum of digits gives 34731980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34731989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868280 + ... + 868319.

It is an arithmetic number, because the mean of its divisors is an integer number (6078100).

Almost surely, 2^34731980 is an apocalyptic number.

It is an amenable number.

34731980 is an abundant number, since it is smaller than the sum of its proper divisors (38205220).

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

34731980 is a wasteful number, since it uses less digits than its factorization.

34731980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736608 (or 1736606 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 34731980 is about 5893.3844266262. The cubic root of 34731980 is about 326.2695275619.

Subtracting from 34731980 its sum of digits (35), we obtain a triangular number (34731945 = T₈₃₃₄).

The spelling of 34731980 in words is "thirty-four million, seven hundred thirty-one thousand, nine hundred eighty".