40371534 has 48 divisors (see below), whose sum is σ = 103678848. Its totient is φ = 11533752.

The previous prime is 40371503. The next prime is 40371559. The reversal of 40371534 is 43517304.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40371498 and 40371507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2532 + ... + 9335.

It is an arithmetic number, because the mean of its divisors is an integer number (2159976).

Almost surely, 2^40371534 is an apocalyptic number.

40371534 is an abundant number, since it is smaller than the sum of its proper divisors (63307314).

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

40371534 is a wasteful number, since it uses less digits than its factorization.

40371534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11891 (or 11879 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 40371534 is about 6353.8597718237. The cubic root of 40371534 is about 343.0507848090.

Adding to 40371534 its reverse (43517304), we get a palindrome (83888838).

The spelling of 40371534 in words is "forty million, three hundred seventy-one thousand, five hundred thirty-four".