40153780 has 24 divisors (see below), whose sum is σ = 84446208. Its totient is φ = 16038048.

The previous prime is 40153721. The next prime is 40153781. The reversal of 40153780 is 8735104.

It is a super-2 number, since 2×40153780² = 3224652096576800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40153781) 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, 20817 + ... + 22663.

It is an arithmetic number, because the mean of its divisors is an integer number (3518592).

Almost surely, 2^40153780 is an apocalyptic number.

It is an amenable number.

40153780 is an abundant number, since it is smaller than the sum of its proper divisors (44292428).

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

40153780 is a wasteful number, since it uses less digits than its factorization.

40153780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 40153780 is about 6336.7010344500. The cubic root of 40153780 is about 342.4328957280.

Adding to 40153780 its reverse (8735104), we get a palindrome (48888884).

The spelling of 40153780 in words is "forty million, one hundred fifty-three thousand, seven hundred eighty".