3778742 has 8 divisors (see below), whose sum is σ = 6183432. Its totient is φ = 1717600.

The previous prime is 3778727. The next prime is 3778759. The reversal of 3778742 is 2478773.

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

It is a super-2 number, since 2×3778742² = 28557782205128, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3778696 and 3778705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85859 + ... + 85902.

It is an arithmetic number, because the mean of its divisors is an integer number (772929).

Almost surely, 2^3778742 is an apocalyptic number.

3778742 is a deficient number, since it is larger than the sum of its proper divisors (2404690).

3778742 is a wasteful number, since it uses less digits than its factorization.

3778742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171774.

The product of its digits is 65856, while the sum is 38.

The square root of 3778742 is about 1943.8986599100. The cubic root of 3778742 is about 155.7575402980.

It can be divided in two parts, 377 and 8742, that added together give a palindrome (9119).

The spelling of 3778742 in words is "three million, seven hundred seventy-eight thousand, seven hundred forty-two".