1402440401215 has 16 divisors (see below), whose sum is σ = 1989669142080. Its totient is φ = 928512264960.

The previous prime is 1402440401123. The next prime is 1402440401249. The reversal of 1402440401215 is 5121040442041.

It is a happy number.

It is not a de Polignac number, because 1402440401215 - 2¹⁹ = 1402439876927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690856326 + ... + 690858355.

It is an arithmetic number, because the mean of its divisors is an integer number (124354321380).

Almost surely, 2^{1402440401215} is an apocalyptic number.

1402440401215 is a deficient number, since it is larger than the sum of its proper divisors (587228740865).

1402440401215 is a wasteful number, since it uses less digits than its factorization.

1402440401215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381714722.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 1402440401215 its reverse (5121040442041), we get a palindrome (6523480843256).

The spelling of 1402440401215 in words is "one trillion, four hundred two billion, four hundred forty million, four hundred one thousand, two hundred fifteen".