1406240242 has 8 divisors (see below), whose sum is σ = 2301120432. Its totient is φ = 639200100.

The previous prime is 1406240239. The next prime is 1406240243. The reversal of 1406240242 is 2420426041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1406240243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31959984 + ... + 31960027.

It is an arithmetic number, because the mean of its divisors is an integer number (287640054).

Almost surely, 2^1406240242 is an apocalyptic number.

1406240242 is a deficient number, since it is larger than the sum of its proper divisors (894880190).

1406240242 is a wasteful number, since it uses less digits than its factorization.

1406240242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63920024.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1406240242 is about 37499.8698931076. The cubic root of 1406240242 is about 1120.3485952527.

Adding to 1406240242 its reverse (2420426041), we get a palindrome (3826666283).

The spelling of 1406240242 in words is "one billion, four hundred six million, two hundred forty thousand, two hundred forty-two".