1906749453 has 32 divisors (see below), whose sum is σ = 2988105984. Its totient is φ = 1058683392.

The previous prime is 1906749437. The next prime is 1906749463. The reversal of 1906749453 is 3549476091.

It is not a de Polignac number, because 1906749453 - 2⁴ = 1906749437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1906749413) 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, 851251 + ... + 853487.

It is an arithmetic number, because the mean of its divisors is an integer number (93378312).

Almost surely, 2^1906749453 is an apocalyptic number.

It is an amenable number.

1906749453 is a deficient number, since it is larger than the sum of its proper divisors (1081356531).

1906749453 is a wasteful number, since it uses less digits than its factorization.

1906749453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 1906749453 is about 43666.3423359457. The cubic root of 1906749453 is about 1240.0271961170.

The spelling of 1906749453 in words is "one billion, nine hundred six million, seven hundred forty-nine thousand, four hundred fifty-three".