32921940 has 48 divisors (see below), whose sum is σ = 92691648. Its totient is φ = 8730624.

The previous prime is 32921939. The next prime is 32921951. The reversal of 32921940 is 4912923.

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

It is a junction number, because it is equal to n+sod(n) for n = 32921898 and 32921907.

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, 10159 + ... + 13001.

It is an arithmetic number, because the mean of its divisors is an integer number (1931076).

Almost surely, 2^32921940 is an apocalyptic number.

32921940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32921940 is an abundant number, since it is smaller than the sum of its proper divisors (59769708).

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

32921940 is a wasteful number, since it uses less digits than its factorization.

32921940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 3046 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 32921940 is about 5737.7643729941. The cubic root of 32921940 is about 320.5003241000.

The spelling of 32921940 in words is "thirty-two million, nine hundred twenty-one thousand, nine hundred forty".