32064690 has 64 divisors (see below), whose sum is σ = 88833024. Its totient is φ = 7255488.

The previous prime is 32064679. The next prime is 32064701. The reversal of 32064690 is 9646023.

It is an interprime number because it is at equal distance from previous prime (32064679) and next prime (32064701).

It is a super-2 number, since 2×32064690² = 2056288689592200, which contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21757 + ... + 23183.

It is an arithmetic number, because the mean of its divisors is an integer number (1388016).

Almost surely, 2^32064690 is an apocalyptic number.

32064690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 32064690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44416512).

32064690 is an abundant number, since it is smaller than the sum of its proper divisors (56768334).

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

32064690 is a wasteful number, since it uses less digits than its factorization.

32064690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 32064690 is about 5662.5692048751. The cubic root of 32064690 is about 317.6940017567.

The spelling of 32064690 in words is "thirty-two million, sixty-four thousand, six hundred ninety".