2940778 has 8 divisors (see below), whose sum is σ = 4418820. Its totient is φ = 1467840.

The previous prime is 2940761. The next prime is 2940781. The reversal of 2940778 is 8770492.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2866249 + 74529 = 1693^2 + 273^2 .

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

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, 928 + ... + 2596.

2^2940778 is an apocalyptic number.

2940778 is a deficient number, since it is larger than the sum of its proper divisors (1478042).

2940778 is a wasteful number, since it uses less digits than its factorization.

2940778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2940778 is about 1714.8696743485. The cubic root of 2940778 is about 143.2696105183.

The spelling of 2940778 in words is "two million, nine hundred forty thousand, seven hundred seventy-eight".