1401416021252 has 24 divisors (see below), whose sum is σ = 2732203651800. Its totient is φ = 624503690496.

The previous prime is 1401416021249. The next prime is 1401416021261. The reversal of 1401416021252 is 2521206141041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129970344196 + 1271445677056 = 360514^2 + 1127584^2 .

It is a super-2 number, since 2×1401416021252² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464658977 + ... + 464661992.

It is an arithmetic number, because the mean of its divisors is an integer number (113841818825).

Almost surely, 2^{1401416021252} is an apocalyptic number.

It is an amenable number.

1401416021252 is a deficient number, since it is larger than the sum of its proper divisors (1330787630548).

1401416021252 is a wasteful number, since it uses less digits than its factorization.

1401416021252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929321015 (or 929321013 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 1401416021252 in words is "one trillion, four hundred one billion, four hundred sixteen million, twenty-one thousand, two hundred fifty-two".