40451190 has 128 divisors (see below), whose sum is σ = 113218560. Its totient is φ = 9165312.

The previous prime is 40451189. The next prime is 40451219. The reversal of 40451190 is 9115404.

It is a super-2 number, since 2×40451190² = 3272597544832200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40451190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 392679 + ... + 392781.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^40451190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40451190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56609280).

40451190 is an abundant number, since it is smaller than the sum of its proper divisors (72767370).

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

40451190 is a wasteful number, since it uses less digits than its factorization.

40451190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 40451190 is about 6360.1249987716. The cubic root of 40451190 is about 343.2762580421.

Adding to 40451190 its reverse (9115404), we get a palindrome (49566594).

The spelling of 40451190 in words is "forty million, four hundred fifty-one thousand, one hundred ninety".