7403744381 has 4 divisors (see below), whose sum is σ = 8076812064. Its totient is φ = 6730676700.

The previous prime is 7403744351. The next prime is 7403744393. The reversal of 7403744381 is 1834473047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7403744381 - 2¹⁴ = 7403727997 is a prime.

It is a super-2 number, since 2×7403744381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7403744351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336533825 + ... + 336533846.

It is an arithmetic number, because the mean of its divisors is an integer number (2019203016).

Almost surely, 2^7403744381 is an apocalyptic number.

It is an amenable number.

7403744381 is a deficient number, since it is larger than the sum of its proper divisors (673067683).

7403744381 is a wasteful number, since it uses less digits than its factorization.

7403744381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673067682.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 7403744381 is about 86045.0136905097. The cubic root of 7403744381 is about 1949.0237832027.

The spelling of 7403744381 in words is "seven billion, four hundred three million, seven hundred forty-four thousand, three hundred eighty-one".