39851952 has 80 divisors (see below), whose sum is σ = 119159040. Its totient is φ = 11241216.

The previous prime is 39851951. The next prime is 39851953. The reversal of 39851952 is 25915893.

It is an interprime number because it is at equal distance from previous prime (39851951) and next prime (39851953).

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 (39851951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27174 + ... + 28602.

It is an arithmetic number, because the mean of its divisors is an integer number (1489488).

Almost surely, 2^39851952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39851952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59579520).

39851952 is an abundant number, since it is smaller than the sum of its proper divisors (79307088).

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

39851952 is a wasteful number, since it uses less digits than its factorization.

39851952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 1524 counting only the distinct ones).

The product of its digits is 97200, while the sum is 42.

The square root of 39851952 is about 6312.8402482559. The cubic root of 39851952 is about 341.5727368472.

The spelling of 39851952 in words is "thirty-nine million, eight hundred fifty-one thousand, nine hundred fifty-two".