1945633341 has 16 divisors (see below), whose sum is σ = 2659694400. Its totient is φ = 1264448640.

The previous prime is 1945633337. The next prime is 1945633343. The reversal of 1945633341 is 1433365491.

It is a happy number.

It is not a de Polignac number, because 1945633341 - 2² = 1945633337 is a prime.

It is a super-2 number, since 2×1945633341² = 7570978195221644562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1945633341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945633343) 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, 52735 + ... + 81683.

It is an arithmetic number, because the mean of its divisors is an integer number (166230900).

Almost surely, 2^1945633341 is an apocalyptic number.

It is an amenable number.

1945633341 is a deficient number, since it is larger than the sum of its proper divisors (714061059).

1945633341 is a wasteful number, since it uses less digits than its factorization.

1945633341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29516.

The product of its digits is 116640, while the sum is 39.

The square root of 1945633341 is about 44109.3339441892. Note that the first 3 decimals coincide. The cubic root of 1945633341 is about 1248.3997316004.

The spelling of 1945633341 in words is "one billion, nine hundred forty-five million, six hundred thirty-three thousand, three hundred forty-one".