1400166504 has 144 divisors (see below), whose sum is σ = 4196801700. Its totient is φ = 421386240.

The previous prime is 1400166503. The next prime is 1400166511. The reversal of 1400166504 is 4056610041.

1400166504 is a `hidden beast` number, since 1 + 4 + 0 + 0 + 1 + 6 + 650 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1390544100 + 9622404 = 37290^2 + 3102^2 .

It is not an unprimeable number, because it can be changed into a prime (1400166503) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1506712 + ... + 1507640.

Almost surely, 2^1400166504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400166504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2098400850).

1400166504 is an abundant number, since it is smaller than the sum of its proper divisors (2796635196).

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

1400166504 is a wasteful number, since it uses less digits than its factorization.

1400166504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1400166504 is about 37418.7988048788. The cubic root of 1400166504 is about 1118.7332894147.

Adding to 1400166504 its reverse (4056610041), we get a palindrome (5456776545).

The spelling of 1400166504 in words is "one billion, four hundred million, one hundred sixty-six thousand, five hundred four".