1400181908446 has 8 divisors (see below), whose sum is σ = 2172696064920. Its totient is φ = 675949886808.

The previous prime is 1400181908429. The next prime is 1400181908453. The reversal of 1400181908446 is 6448091810041.

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

It is a super-2 number, since 2×1400181908446² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400181908396 and 1400181908405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12070533636 + ... + 12070533751.

It is an arithmetic number, because the mean of its divisors is an integer number (271587008115).

Almost surely, 2^{1400181908446} is an apocalyptic number.

1400181908446 is a deficient number, since it is larger than the sum of its proper divisors (772514156474).

1400181908446 is a wasteful number, since it uses less digits than its factorization.

1400181908446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24141067418.

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 1400181908446 in words is "one trillion, four hundred billion, one hundred eighty-one million, nine hundred eight thousand, four hundred forty-six".