84370040 has 32 divisors (see below), whose sum is σ = 190179360. Its totient is φ = 33686400.

The previous prime is 84369979. The next prime is 84370057. The reversal of 84370040 is 4007348.

It is a junction number, because it is equal to n+sod(n) for n = 84369991 and 84370009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24845 + ... + 28035.

It is an arithmetic number, because the mean of its divisors is an integer number (5943105).

Almost surely, 2^84370040 is an apocalyptic number.

It is an amenable number.

84370040 is an abundant number, since it is smaller than the sum of its proper divisors (105809320).

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

84370040 is a wasteful number, since it uses less digits than its factorization.

84370040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863 (or 3859 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 84370040 is about 9185.3165432662. The cubic root of 84370040 is about 438.5940661173.

Adding to 84370040 its reverse (4007348), we get a palindrome (88377388).

The spelling of 84370040 in words is "eighty-four million, three hundred seventy thousand, forty".