40325390 has 32 divisors (see below), whose sum is σ = 83173824. Its totient is φ = 13789440.

The previous prime is 40325381. The next prime is 40325407. The reversal of 40325390 is 9352304.

It is a super-2 number, since 2×40325390² = 3252274157304200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52610 + ... + 53370.

It is an arithmetic number, because the mean of its divisors is an integer number (2599182).

Almost surely, 2^40325390 is an apocalyptic number.

40325390 is an abundant number, since it is smaller than the sum of its proper divisors (42848434).

40325390 is a wasteful number, since it uses less digits than its factorization.

40325390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 40325390 is about 6350.2275549779. The cubic root of 40325390 is about 342.9200345111.

Adding to 40325390 its reverse (9352304), we get a palindrome (49677694).

The spelling of 40325390 in words is "forty million, three hundred twenty-five thousand, three hundred ninety".