400014245 has 8 divisors (see below), whose sum is σ = 491725080. Its totient is φ = 312206080.

The previous prime is 400014221. The next prime is 400014281. The reversal of 400014245 is 542410004.

It can be written as a sum of positive squares in 4 ways, for example, as 26481316 + 373532929 = 5146^2 + 19327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-400014245 is a prime.

It is a super-2 number, since 2×400014245² = 320022792405840050, which contains 22 as substring.

400014245 is a modest number, since divided by 14245 gives 400 as remainder.

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, 975440 + ... + 975849.

It is an arithmetic number, because the mean of its divisors is an integer number (61465635).

Almost surely, 2^400014245 is an apocalyptic number.

It is an amenable number.

400014245 is a deficient number, since it is larger than the sum of its proper divisors (91710835).

400014245 is a wasteful number, since it uses less digits than its factorization.

400014245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951335.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 400014245 is about 20000.3561218294. The cubic root of 400014245 is about 736.8150461290.

Adding to 400014245 its reverse (542410004), we get a palindrome (942424249).

The spelling of 400014245 in words is "four hundred million, fourteen thousand, two hundred forty-five".