1954290709 has 16 divisors (see below), whose sum is σ = 2366057088. Its totient is φ = 1575770112.

The previous prime is 1954290697. The next prime is 1954290829. The reversal of 1954290709 is 9070924591.

It is a happy number.

It is not a de Polignac number, because 1954290709 - 2²⁹ = 1417419797 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 (1954890709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376677 + ... + 381829.

It is an arithmetic number, because the mean of its divisors is an integer number (147878568).

Almost surely, 2^1954290709 is an apocalyptic number.

It is an amenable number.

1954290709 is a deficient number, since it is larger than the sum of its proper divisors (411766379).

1954290709 is a wasteful number, since it uses less digits than its factorization.

1954290709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8364.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1954290709 is about 44207.3603487021. The cubic root of 1954290709 is about 1250.2486351278.

The spelling of 1954290709 in words is "one billion, nine hundred fifty-four million, two hundred ninety thousand, seven hundred nine".