34661820 has 48 divisors (see below), whose sum is σ = 97574400. Its totient is φ = 9193536.

The previous prime is 34661807. The next prime is 34661831. The reversal of 34661820 is 2816643.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10489 + ... + 13391.

It is an arithmetic number, because the mean of its divisors is an integer number (2032800).

Almost surely, 2^34661820 is an apocalyptic number.

34661820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34661820 is an abundant number, since it is smaller than the sum of its proper divisors (62912580).

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

34661820 is a wasteful number, since it uses less digits than its factorization.

34661820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114 (or 3112 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 34661820 is about 5887.4289804634. The cubic root of 34661820 is about 326.0496869328.

The spelling of 34661820 in words is "thirty-four million, six hundred sixty-one thousand, eight hundred twenty".