1838452497 has 16 divisors (see below), whose sum is σ = 2803770240. Its totient is φ = 1049674752.

The previous prime is 1838452453. The next prime is 1838452507. The reversal of 1838452497 is 7942548381.

It is a happy number.

It is not a de Polignac number, because 1838452497 - 2⁶ = 1838452433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1838453497) 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, 9808 + ... + 61425.

It is an arithmetic number, because the mean of its divisors is an integer number (175235640).

Almost surely, 2^1838452497 is an apocalyptic number.

It is an amenable number.

1838452497 is a deficient number, since it is larger than the sum of its proper divisors (965317743).

1838452497 is a wasteful number, since it uses less digits than its factorization.

1838452497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72472.

The product of its digits is 1935360, while the sum is 51.

The square root of 1838452497 is about 42877.1792099247. The cubic root of 1838452497 is about 1225.0415084089.

The spelling of 1838452497 in words is "one billion, eight hundred thirty-eight million, four hundred fifty-two thousand, four hundred ninety-seven".