1405241849 has 24 divisors (see below), whose sum is σ = 1585213344. Its totient is φ = 1245598200.

The previous prime is 1405241837. The next prime is 1405241857. The reversal of 1405241849 is 9481425041.

It is not a de Polignac number, because 1405241849 - 2¹² = 1405237753 is a prime.

It is a super-4 number, since 4×1405241849⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1405241249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2460734 + ... + 2461304.

It is an arithmetic number, because the mean of its divisors is an integer number (66050556).

Almost surely, 2^1405241849 is an apocalyptic number.

It is an amenable number.

1405241849 is a deficient number, since it is larger than the sum of its proper divisors (179971495).

1405241849 is an frugal number, since it uses more digits than its factorization.

1405241849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1405241849 is about 37486.5555766331. Note that the first 4 decimals coincide. The cubic root of 1405241849 is about 1120.0833932909.

The spelling of 1405241849 in words is "one billion, four hundred five million, two hundred forty-one thousand, eight hundred forty-nine".