401610740 has 12 divisors (see below), whose sum is σ = 843382596. Its totient is φ = 160644288.

The previous prime is 401610721. The next prime is 401610757. The reversal of 401610740 is 47016104.

It can be written as a sum of positive squares in 2 ways, for example, as 247999504 + 153611236 = 15748^2 + 12394^2 .

It is a super-2 number, since 2×401610740² = 322582372966695200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10040249 + ... + 10040288.

It is an arithmetic number, because the mean of its divisors is an integer number (70281883).

Almost surely, 2^401610740 is an apocalyptic number.

It is an amenable number.

401610740 is an abundant number, since it is smaller than the sum of its proper divisors (441771856).

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

401610740 is a wasteful number, since it uses less digits than its factorization.

401610740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080546 (or 20080544 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 401610740 is about 20040.2280426147. The cubic root of 401610740 is about 737.7939779840.

Adding to 401610740 its reverse (47016104), we get a palindrome (448626844).

The spelling of 401610740 in words is "four hundred one million, six hundred ten thousand, seven hundred forty".