32023890 has 64 divisors (see below), whose sum is σ = 86486400. Its totient is φ = 8430912.

The previous prime is 32023883. The next prime is 32023897. The reversal of 32023890 is 9832023.

It is an interprime number because it is at equal distance from previous prime (32023883) and next prime (32023897).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (32023897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21696 + ... + 23124.

It is an arithmetic number, because the mean of its divisors is an integer number (1351350).

Almost surely, 2^32023890 is an apocalyptic number.

32023890 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 32023890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43243200).

32023890 is an abundant number, since it is smaller than the sum of its proper divisors (54462510).

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

32023890 is a wasteful number, since it uses less digits than its factorization.

32023890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 32023890 is about 5658.9654531548. The cubic root of 32023890 is about 317.5591970139.

The spelling of 32023890 in words is "thirty-two million, twenty-three thousand, eight hundred ninety".