774253381 has 8 divisors (see below), whose sum is σ = 845023104. Its totient is φ = 703547520.

The previous prime is 774253373. The next prime is 774253409. The reversal of 774253381 is 183352477.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 774253381 - 2³ = 774253373 is a prime.

It is a super-2 number, since 2×774253381² = 1198936595979862322, which 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 (774253681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11445 + ... + 40981.

It is an arithmetic number, because the mean of its divisors is an integer number (105627888).

Almost surely, 2^774253381 is an apocalyptic number.

It is an amenable number.

774253381 is a deficient number, since it is larger than the sum of its proper divisors (70769723).

774253381 is a wasteful number, since it uses less digits than its factorization.

774253381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31931.

The product of its digits is 141120, while the sum is 40.

The square root of 774253381 is about 27825.4089098435. The cubic root of 774253381 is about 918.2502110492.

The spelling of 774253381 in words is "seven hundred seventy-four million, two hundred fifty-three thousand, three hundred eighty-one".