2343781404 has 144 divisors (see below), whose sum is σ = 6386016000. Its totient is φ = 722608128.

The previous prime is 2343781387. The next prime is 2343781409. The reversal of 2343781404 is 4041873432.

It is a super-2 number, since 2×2343781404² = 10986622539472422432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2343781409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9119644 + ... + 9119900.

Almost surely, 2^2343781404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2343781404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3193008000).

2343781404 is an abundant number, since it is smaller than the sum of its proper divisors (4042234596).

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

2343781404 is a wasteful number, since it uses less digits than its factorization.

2343781404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 2343781404 is about 48412.6161656236. The cubic root of 2343781404 is about 1328.3291442037.

The spelling of 2343781404 in words is "two billion, three hundred forty-three million, seven hundred eighty-one thousand, four hundred four".