1022469749 has 4 divisors (see below), whose sum is σ = 1168536864. Its totient is φ = 876402636.

The previous prime is 1022469731. The next prime is 1022469769. The reversal of 1022469749 is 9479642201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022469749 - 2⁸ = 1022469493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022469769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73033547 + ... + 73033560.

It is an arithmetic number, because the mean of its divisors is an integer number (292134216).

Almost surely, 2^1022469749 is an apocalyptic number.

It is an amenable number.

1022469749 is a deficient number, since it is larger than the sum of its proper divisors (146067115).

1022469749 is an equidigital number, since it uses as much as digits as its factorization.

1022469749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146067114.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1022469749 is about 31976.0808886893. The cubic root of 1022469749 is about 1007.4345074591.

The spelling of 1022469749 in words is "one billion, twenty-two million, four hundred sixty-nine thousand, seven hundred forty-nine".