404040348 has 36 divisors (see below), whose sum is σ = 1033636968. Its totient is φ = 133056480.

The previous prime is 404040347. The next prime is 404040353. The reversal of 404040348 is 843040404.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×404040348² = 326497205623922208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404040347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64623 + ... + 70598.

It is an arithmetic number, because the mean of its divisors is an integer number (28712138).

Almost surely, 2^404040348 is an apocalyptic number.

It is an amenable number.

404040348 is an abundant number, since it is smaller than the sum of its proper divisors (629596620).

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

404040348 is a wasteful number, since it uses less digits than its factorization.

404040348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135314 (or 135309 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 404040348 is about 20100.7549111967. The cubic root of 404040348 is about 739.2787884409.

The spelling of 404040348 in words is "four hundred four million, forty thousand, three hundred forty-eight".