42599380 has 24 divisors (see below), whose sum is σ = 90284040. Its totient is φ = 16882560.

The previous prime is 42599377. The next prime is 42599383. The reversal of 42599380 is 8399524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42599377) and next prime (42599383).

It can be written as a sum of positive squares in 4 ways, for example, as 3511876 + 39087504 = 1874^2 + 6252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42599383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7591 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (3761835).

Almost surely, 2^42599380 is an apocalyptic number.

It is an amenable number.

42599380 is an abundant number, since it is smaller than the sum of its proper divisors (47684660).

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

42599380 is a wasteful number, since it uses less digits than its factorization.

42599380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19659 (or 19657 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 42599380 is about 6526.8200526750. The cubic root of 42599380 is about 349.2484007567.

The spelling of 42599380 in words is "forty-two million, five hundred ninety-nine thousand, three hundred eighty".