30777340 has 96 divisors (see below), whose sum is σ = 76608000. Its totient is φ = 10264320.

The previous prime is 30777337. The next prime is 30777343. The reversal of 30777340 is 4377703.

It is an interprime number because it is at equal distance from previous prime (30777337) and next prime (30777343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30777343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154561 + ... + 154759.

It is an arithmetic number, because the mean of its divisors is an integer number (798000).

Almost surely, 2^30777340 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 30777340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38304000).

30777340 is an abundant number, since it is smaller than the sum of its proper divisors (45830660).

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

30777340 is a wasteful number, since it uses less digits than its factorization.

30777340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 30777340 is about 5547.7328702813. The cubic root of 30777340 is about 313.3841499996.

The spelling of 30777340 in words is "thirty million, seven hundred seventy-seven thousand, three hundred forty".