400140302 has 16 divisors (see below), whose sum is σ = 609425520. Its totient is φ = 197007552.

The previous prime is 400140277. The next prime is 400140313. The reversal of 400140302 is 203041004.

It is a super-2 number, since 2×400140302² = 320224522569302408, 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 7 ways as a sum of consecutive naturals, for example, 105149 + ... + 108887.

It is an arithmetic number, because the mean of its divisors is an integer number (38089095).

Almost surely, 2^400140302 is an apocalyptic number.

400140302 is a deficient number, since it is larger than the sum of its proper divisors (209285218).

400140302 is a wasteful number, since it uses less digits than its factorization.

400140302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400140302 is about 20003.5072424813. The cubic root of 400140302 is about 736.8924358225.

Adding to 400140302 its reverse (203041004), we get a palindrome (603181306).

The spelling of 400140302 in words is "four hundred million, one hundred forty thousand, three hundred two".