32373978 has 48 divisors (see below), whose sum is σ = 80145216. Its totient is φ = 8536320.

The previous prime is 32373973. The next prime is 32374003. The reversal of 32373978 is 87937323.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (32373973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4818 + ... + 9378.

It is an arithmetic number, because the mean of its divisors is an integer number (1669692).

Almost surely, 2^32373978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32373978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40072608).

32373978 is an abundant number, since it is smaller than the sum of its proper divisors (47771238).

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

32373978 is a wasteful number, since it uses less digits than its factorization.

32373978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599 (or 4586 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 32373978 is about 5689.8135294577. The cubic root of 32373978 is about 318.7122006696.

The spelling of 32373978 in words is "thirty-two million, three hundred seventy-three thousand, nine hundred seventy-eight".