19474001400 has 288 divisors, whose sum is σ = 70407033840. Its totient is φ = 4439715840.

The previous prime is 19474001389. The next prime is 19474001411. The reversal of 19474001400 is 410047491.

It is an interprime number because it is at equal distance from previous prime (19474001389) and next prime (19474001411).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 17433642 + ... + 17434758.

Almost surely, 2^19474001400 is an apocalyptic number.

19474001400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19474001400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35203516920).

19474001400 is an abundant number, since it is smaller than the sum of its proper divisors (50933032440).

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

19474001400 is a wasteful number, since it uses less digits than its factorization.

19474001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 19474001400 its reverse (410047491), we get a palindrome (19884048891).

The spelling of 19474001400 in words is "nineteen billion, four hundred seventy-four million, one thousand, four hundred".