40219901401 has 27 divisors (see below), whose sum is σ = 43827940447. Its totient is φ = 36901016000.

The previous prime is 40219901341. The next prime is 40219901417. The reversal of 40219901401 is 10410991204.

The square root of 40219901401 is 200549.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 31313072025 + 8906829376 = 176955^2 + 94376^2 .

It is not a de Polignac number, because 40219901401 - 2¹⁷ = 40219770329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40219901471) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 160238526 + ... + 160238776.

Almost surely, 2^40219901401 is an apocalyptic number.

40219901401 is the 200549-th square number.

40219901401 is the 100275-th centered octagonal number.

It is an amenable number.

40219901401 is a deficient number, since it is larger than the sum of its proper divisors (3608039046).

40219901401 is an frugal number, since it uses more digits than its factorization.

40219901401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 40219901401 in words is "forty billion, two hundred nineteen million, nine hundred one thousand, four hundred one".