1390741722 has 12 divisors (see below), whose sum is σ = 3013273770. Its totient is φ = 463580568.

The previous prime is 1390741711. The next prime is 1390741789. The reversal of 1390741722 is 2271470931.

It can be written as a sum of positive squares in only one way, i.e., 1137645441 + 253096281 = 33729^2 + 15909^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38631697 + ... + 38631732.

Almost surely, 2^1390741722 is an apocalyptic number.

1390741722 is an abundant number, since it is smaller than the sum of its proper divisors (1622532048).

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

1390741722 is a wasteful number, since it uses less digits than its factorization.

1390741722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77263437 (or 77263434 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1390741722 is about 37292.6497047340. The cubic root of 1390741722 is about 1116.2175020248.

The spelling of 1390741722 in words is "one billion, three hundred ninety million, seven hundred forty-one thousand, seven hundred twenty-two".